| All ac | 4 You Airlines | Poland | inop | AMQ | | | |
| All ac | Abu Dhabi Amiri Flight | United Arab Emirates | inop | AUH | MO | | |
| All ac | ACES Columbia | Colombia | inop | AES | VX | | |
| All ac | Acropolis Aviation | Greece | active | 27V | | in svc | 1 |
| All ac | Adria Airways | Slovenia | inop | ADR | JP | | |
| All ac | Aegean Airlines | Greece | active | AEE | A3 | in svc | 56 |
| All ac | Aeolian Airlines | Greece | inop | AOL | | | |
| All ac | Aeolus Air | Gambia | inop | AAZ | | | |
| All ac | Aer Lingus | Ireland | active | EIN | EI | in svc | 41 |
| All ac | Aer Lingus UK | United Kingdom | active | EUK | EG | | |
| All ac | Aero Contractors | Nigeria | active | NIG | NG | | |
| All ac | Aero Dili | Timor-Leste | active | DTL | 8G | in svc | 1 |
| All ac | Aero Flight | Germany | inop | ARF | GV | | |
| All ac | Aero K | Korea | active | EOK | | in svc | 6 |
| All ac | Aero Lloyd | Germany | inop | AEF | YP | | |
| All ac | Aero Mongolia | Mongolia | active | MNG | M0 | in svc | 2 |
| All ac | Aero Nomad | Kyrgyzstan | active | ANK | KA | in svc | 2 |
| All ac | Aeroflot | Russian Federation | active | AFL | SU | in svc | 90 |
| All ac | AeroGal | Ecuador | inop | GLG | 2K | | |
| All ac | Aeroitalia | Italy | inop | AEZ | XZ | | |
| All ac | Aerolineas Argentinas | Argentina | inop | ARG | AR | | |
| All ac | Aeropostal | Venezuela | inop | ALV | VH | | |
| All ac | Aeroquetzal | Guatemala | inop | AW | AW | | |
| All ac | Aerosvit Airlines | Ukraine | inop | AEW | VV | | |
| All ac | Aerovista Gulf Express | United Arab Emirates | inop | VGF | | | |
| All ac | Aerro Direkt | Romania | inop | DIR | D4 | | |
| All ac | Africa Charter Airlines | South Africa | inop | FSK | | | |
| All ac | Africa One | Uganda | inop | CFR | | | |
| All ac | Afriqiyah Airways | Libya | active | AAW | 8U | in svc | 5 |
| All ac | Aigle Azur | France | inop | AAF | ZI | | |
| All ac | Air 2000 | United Kingdom | inop | AMM | DP | | |
| All ac | Air Albania | Albania | active | ABN | | in svc | 3 |
| All ac | Air Alfa | Türkiye | inop | LFA | H7 | | |
| All ac | Air Algerie | Algeria | active | DAH | AH | in svc | 1 |
| All ac | Air Anka | Türkiye | active | TAH | TZ | | |
| All ac | Air Arabia | United Arab Emirates | active | ABY | G9 | in svc | 41 |
| All ac | Air Arabia Abu Dhabi | United Arab Emirates | active | ADY | 3L | in svc | 10 |
| All ac | Air Arabia Egypt | Egypt | active | RBG | E5 | in svc | 4 |
| All ac | Air Arabia Jordan | Jordan | inop | JAD | P9 | | |
| All ac | Air Arabia Maroc | Morocco | active | MAC | 3O | in svc | 11 |
| All ac | Air Armenia | Armenia | active | ARR | QN | | |
| All ac | Air Astana | Kazakhstan | active | KZR | KC | in svc | 23 |
| All ac | Air Asturias | Spain | inop | LTE | XO | | |
| All ac | Air Atlanta Icelandic | Iceland | New | ABD | CC | | |
| All ac | Air Austral | Reunion | active | REU | UU | | |
| All ac | Air Australia | Australia | inop | AGC | VC | | |
| All ac | Air Baltic | Latvia | active | BTI | BT | | 2 |
| All ac | Air Belgium | Belgium | inop | ABB | | | |
| All ac | Air Berlin | Germany | inop | BER | AB | | |
| All ac | Air Bishkek | Kyrgyzstan | inop | EAA | KR | | |
| All ac | Air Bucharest | Romania | active | BUR | | | |
| All ac | Air Burkina | Burkina Faso | inop | VBW | 2J | | |
| All ac | Air Busan | Korea | active | ABL | BX | in svc | 24 |
| All ac | Air Cairo | Egypt | active | MSC | SM | in svc | 25 |
| All ac | Air Canada | Canada | active | ACA | AC | in svc | 33 |
| All ac | Air Canada Jetz | Canada | active | ACA | AC | | 4 |
| All ac | Air Canada Rouge | Canada | active | ROU | RV | in svc | 42 |
| All ac | Air Canada Tango | Canada | inop | ACA | AC | | |
| All ac | Air Charter | France | inop | ACF | SF | | |
| All ac | Air China | China | active | CCA | CA | in svc | 192 |
| All ac | Air Columbus | Portugal | inop | CNB | BO | | |
| All ac | Air Comet | Spain | inop | MPD | A7 | | |
| All ac | Air Contractors | Ireland | inop | ABR | AG | | |
| All ac | Air Corsica | France | active | CCM | XK | in svc | 8 |
| All ac | Air Cote d'Ivoire | Cote d'Ivoire | active | VRE | HF | in svc | 6 |
| All ac | Air Deccan | India | inop | DKN | DN | | |
| All ac | Air Djibouti | Djibouti | inop | DJU | DJ | | |
| All ac | Air Europe | Spain | inop | AEL | PE | | |
| All ac | Air Explore | Slovakia | inop | AXE | ED | | |
| All ac | Air France | France | active | AFR | AF | in svc | 68 |
| All ac | Air Georgia | Georgia | inop | GGN | A9 | | |
| All ac | Air Go Airlines Egypt | Egypt | inop | AGY | | | |
| All ac | Air Greenland | Greenland | active | GRL | GL | | |
| All ac | Air Guilin | China | active | CGH | GT | in svc | 10 |
| All ac | Air Guinee International | Guinea | not Launched | AG1 | | | |
| All ac | Air India | India | active | AIC | AI | in svc | 80 |
| All ac | Air India Express | India | active | AXB | IX | in svc | 4 |
| All ac | Air Inter | France | inop | ITF | IT | | |
| All ac | Air Inter Europe | France | inop | ITF | IT | | |
| All ac | Air Italy | Italy | inop | ISSi | IG | | |
| All ac | Air Ivoire | C ote d'Ivoire | inop | VUN | VU | | |
| All ac | Air Jamaica | Jamaica | inop | AJM | JM | | |
| All ac | Air KG | Kyrgyzstan | active | KGC | | in svc | 1 |
| All ac | Air Lanka | Sri Lanka | inop | ALK | UL | | |
| All ac | Air Luxor | Egypt | inop | LXR | LK | | |
| All ac | Air Macau | Macao | active | AMU | NX | in svc | 22 |
| All ac | Air Madrid | Spain | inop | DRD | NM | | |
| All ac | Air Maledives | Maldivian | inop | AMI | L6 | | |
| All ac | Air Malta | Malta | active | AMC | KM | in svc | |
| All ac | Air Mauritius | Mauritius | inop | MAU | MK | | |
| All ac | Air Mediterranean | Greece | active | MAR | MV | | |
| All ac | Air Mediterranee | France | inop | BIE | DR | | |
| All ac | Air Memphis | Egypt | inop | MHS | E9 | | |
| All ac | Air Moldova | Moldova | inop | MLD | 9U | | |
| All ac | Air Montenegro | Montenegro | active | MNE | | | |
| All ac | Air Namibia | Namibia | inop | NMB | SW | | |
| All ac | Air New Zealand | New Zealand | active | ANZ | NZ | in svc | 34 |
| All ac | Air Niamey | Japan | inop | AWN | A7 | | |
| All ac | Air Nippon - ANK | Japan | inop | ANKo | EL | | |
| All ac | Air One | Italy | inop | ADH | AP | | |
| All ac | Air Peace | Nigeria | active | APK | P4 | in svc | 2 |
| All ac | Air Prishtina | Switzerland | inop | | | | |
| All ac | Air Samarkand | Uzbekistan | active | UZS | C7 | in svc | 1 |
| All ac | Air Scandic International | United Kingdom | inop | SCY | | | |
| All ac | Air Senegal | Senegal | active | SZN | HC | in svc | 4 |
| All ac | Air Seoul | Korea | active | ASV | RS | in svc | 6 |
| All ac | Air Serbia | Serbia | active | ASL | JU | in svc | 14 |
| All ac | Air Seychelles | Seychelles | active | SEY | HM | in svc | 2 |
| All ac | Air Sial | Pakistan | active | SIF | PF | in svc | 5 |
| All ac | Air Slovakia | Slovakia | inop | SVK | GM | | |
| All ac | Air Stork | Moldova | active | MSB | | | |
| All ac | Air Sweden | Sweden | inop | SNX | | | |
| All ac | Air Tanzania | Tanzania | inop | ATC | TC | | |
| All ac | Air Transat | Canada | active | TSC | TS | in svc | 21 |
| All ac | Air Transport International (ATI) | United States | inop | ATN | 8C | | |
| All ac | Air Travel | China | active | OTC | A6 | in svc | 15 |
| All ac | Air Vallee | Italy | inop | RVL | DO | | |
| All ac | Air Via | Bulgaria | inop | VIM | VL | | |
| All ac | Air Wagon International | Indonesia | inop | AWQ | QZ | | |
| All ac | Air Zimbabwe | Zimbabwe | active | AZW | UM | | |
| All ac | AirAsia | Malaysia | active | AXM | AK | in svc | 102 |
| All ac | AirAsia Cambodia | Cmabodia | active | KAM | KT | in svc | 1 |
| All ac | AirAsia India | India | inop | IAD | I5 | | |
| All ac | AirAsia Japan | Japan | inop | WAJ | JW | | |
| All ac | AirAsia Philippines | Philippines | inop | EZD | PQ | | |
| All ac | AirAsia Zest | Philippines | inop | EZDz | Z2 | | |
| All ac | AirBahn | United States | inop | ARB | UN | | |
| All ac | AirBlue | Pakistan | active | ABQ | PA | in svc | 12 |
| All ac | Airbus Industrie | France | inop | AIB. | | | |
| All ac | Airbus Industrie | France | active | AIB | | in svc | 1 |
| All ac | Aircalin | New Caledonia | active | ACI | SB | in svc | 2 |
| All ac | Aircompany Kokshetau | Kazakhstan | inop | KRT | | | |
| All ac | AIRES Columbia | Colombia | inop | ARE | | | |
| All ac | Airest | Estonia | active | AEG | | | |
| All ac | Airhub Airlines | Malta | active | GJM | RE | | |
| All ac | Airphil Express | Philippines | inop | GAP | 2P | | |
| All ac | Airtours International Airways | United Kingdom | inop | AIH | VZ | | |
| All ac | airTran Airways | United States | inop | TRS | FL | | |
| All ac | Airwaze | Cyprus | inop | WZE | | | |
| All ac | Airwork | New Zealand | active | AWK | RL | | |
| All ac | Airworld | United Kingdom | inop | AWD | RL | | |
| All ac | AIX Connect | India | active | IAD | I5 | in svc | 23 |
| All ac | Ajet | Türkiye | active | TKJ | VF | | 34 |
| All ac | Al Hokair Aviation | Saudi Arabia | active | 96Q | | in svc | 1 |
| All ac | Al Jaber Aviation (AJA) | United Arab Emirates | inop | LJB | | | |
| All ac | Al Maha Airways | Qatar | inop | QTR | QR | | |
| All ac | Alajnihah Airways | Libya | inop | ANH | 2T | | |
| All ac | Alanna | Ukraine | inop | ALX | EO | | |
| All ac | Alaska Airlines | United States | active | ASA | AS | | |
| All ac | Alba Star | Spain | inop | LAV | AP | | |
| All ac | Albania Government | Albania | active | TRK | | in svc | 1 |
| All ac | Albanian Airlines | Albania | inop | LBC | LV | | |
| All ac | Albanian Airways | Albania | active | LBN | | | |
| All ac | Albatros Airlines | Venezuela | inop | GAL | | | |
| All ac | Albinati Aviation | Malta | inop | ULC | | | |
| All ac | Alexandria Airways | Egypt | active | KHH | DQ | | |
| All ac | Alianza Summa | Colombia | inop | AVA | | | |
| All ac | Alitalia | Italy | inop | AZA | AZ | | |
| All ac | All Nipon Airways - ANA | Japan | active | ANA | NH | in svc | 30 |
| All ac | Allegiant Air | United States | active | AAY | G4 | in svc | 128 |
| All ac | AlMasria Universal Airlines | Egypt | active | LMU | UJ | in svc | 4 |
| All ac | Al-Naser Airlines | Iraq | inop | MHK | NR | | |
| All ac | Alpha Express Airlines | Latvia | inop | APZ | | | |
| All ac | Alpha Star | Saudi Arabia | active | STT | | in svc | 9 |
| All ac | Ambassador Airways | United Kingdom | inop | AMY | B3 | | |
| All ac | AMC Airlines | Egypt | active | AMV | YJ | | |
| All ac | Amelia International | Slovenia | active | AIA | 8R | in svc | 1 |
| All ac | America West Airlines | United States | inop | AWE | HP | | |
| All ac | American Airlines | United States | active | AAL | AA | in svc | 472 |
| All ac | Amerijet International | United States | active | AJT | M6 | | |
| All ac | Amsterdam Airlines | Netherlands | inop | AAN | | | |
| All ac | Anadolu Jet | Türkiye | inop | THY | TK | | |
| All ac | Anda Air | Ukraine | active | SSV | DM | | |
| All ac | Andalusair | Türkiye | inop | LFH | A7 | | |
| All ac | Andes Lineas Aereas | Argentina | active | ANS | OY | | |
| All ac | Animawings | Romania | active | AWG | A2 | in svc | 1 |
| All ac | Ansett Airlines | Australia | inop | AAA | AN | | |
| All ac | Ansett Australia | Australia | inop | AAA | AN | | |
| All ac | Apsara Air Cambodia | Cambodia | inop | AQQ | IP | | |
| All ac | Arca | Colombia | new | | | | |
| All ac | Aria Air | Teran | inop | IRX | | | |
| All ac | Ariana Afghan Airlines | Afghanistan | inop | AFG | FG | | |
| All ac | Arik Air | Nigeria | active | ARA | W3 | | |
| All ac | ArkeFly | Netherlands | inop | TFL | OR | | |
| All ac | Arkia Israeli Airlines | Israel | active | AIZ | IZ | in svc | 3 |
| All ac | Armavia | Armenia | inop | RNV | U8 | | |
| All ac | Armenia Airways | Armenia | active | AMW | 6A | | |
| All ac | Armenia Goverment | Armenia | active | RME | | in svc | 1 |
| All ac | Armenian Airlines | Armenia | active | AAG | JI | in svc | 1 |
| All ac | Armenian International Airways | Armenia | inop | RML | MV | | |
| All ac | Aruba Airlines | Aruba | active | ARU | AG | in svc | 2 |
| All ac | Asia Sky Lines | Tajikistan | inop | TXP | | | |
| All ac | Asia Wings Airways | Myanmar | inop | AWM | YJ | | |
| All ac | Asian Express Airlines | Tajikistan | active | TXP | KV | in svc | 1 |
| All ac | Asiana Airlines | Korea | active | AAR | OZ | in svc | 23 |
| All ac | ASL Airlines France | France | active | FPO | 5O | | |
| All ac | ASL Airlines Ireland | Ireland | active | ABR | AG | | |
| All ac | Astra Airlines | Greece | inop | AZI | A2 | | |
| All ac | Astraeus | United Kingdom | inop | AEU | 5W | | |
| All ac | Astral Aviation | Kenya | active | ACP | 8V | | |
| All ac | ATA Airlines Iran | Iran | active | TBZ | I3 | in svc | 2 |
| All ac | Atlantic Airways | Faroe Islands | active | FLI | RC | in svc | 4 |
| All ac | Atlantis European Airways | Armenia | active | LUR | TD | | |
| All ac | Atlas Atlantique Airlines | France | inop | TLB | | | |
| All ac | Atlas Blue | Morocco | inop | BMM | 8A | | |
| All ac | AtlasGlobal | Türkiye | inop | KKK | KK | | |
| All ac | AtlasGlobal Ukraine | Ukraine | inop | UJX | UH | | |
| All ac | AtlasJet Airlines | Türkiye | inop | KKK | KK | | |
| All ac | AtlasJet Ukraine | Ukraine | inop | UJX | UH | | |
| All ac | AtlasJet Ukraine | Ukraine | inop | UJX | UH | | |
| All ac | Atrak Air | Iran | active | ATR | | | |
| All ac | Aura Airlines | Spain | inop | GWR | U5 | | |
| All ac | Aurora | Russian Federation | active | SHU | HZ | in svc | 7 |
| All ac | Australia Goverment | Australia | active | SND | | | |
| All ac | Austrian Airlines | Austria | active | AUA | OS | in svc | 39 |
| All ac | AvconJet | Austria | active | AOJ | | | |
| All ac | Avia Nova | Russian Federation | inop | VNV | AO | | |
| All ac | Avia Traffic Company (ATC) | Kyrgyzstan | active | AVJ | YK | in svc | 2 |
| All ac | Avianca | Colombia | active | AVA | AV | in svc | 108 |
| All ac | Avianca (Oceanair) | Brazil | inop | ONE | O6 | | |
| All ac | Avianca Argentina | Argentina | active | MCJ | A0 | | |
| All ac | Avianca Brazil | Brazil | active | ONE | O6 | | |
| All ac | Avianca Costa Rica | Costa Rica | active | LRC | LR | in svc | 3 |
| All ac | Avianca Ecuador | Ecuador | active | GLG | 2K | in svc | 7 |
| All ac | Avianca El Salvador | El Salvador | active | TAI | TA | in svc | 5 |
| All ac | Avianca Express | Colombia | active | AVR | EX | in svc | 3 |
| All ac | Avianca Guatemala | Guatemala | active | GUG | GU | in svc | 1 |
| All ac | Avianca Peru | Peru | active | TPU | T0 | | |
| All ac | Aviastar | Indonesia | inop | VIT | MV | | |
| All ac | Aviation Horizons | Saudi Arabia | active | HZS | | | |
| All ac | Aviation Link Company | | active | | | | |
| All ac | Aviatrans K | Ukraine | inop | KCA | KI | | |
| All ac | Avion Express | Lithuania | active | NVD | X9 | in svc | 4 |
| All ac | Avion Express Brazil | Brazil | active | | | | |
| All ac | Avion Express Malta | Malta | active | MLH | 4X | in svc | 1 |
| All ac | Aviro Air | Romania | inop | AVW | | | |
| All ac | AZAL Azerbaijan Airlines | Azerbaijan | active | AHY | J2 | in svc | 16 |
| All ac | Azores Airlines | Azores | active | RZO | S4 | in svc | 10 |
| All ac | Azul Linhas Aereas | Brazil | active | AZU | AD | in svc | 56 |
| All ac | Azzura Air | Italy | inop | AZIa | ZS | | |
| All ac | BA Euroflyer | United Kingdom | active | EFW | BA | | |
| All ac | Bahamasair | Bahmas | inop | BHS | UP | | |
| All ac | Bahrain Air | Bahrain | inop | BAB | BN | | |
| All ac | Balkan | Bulgaria | inop | LAZ | LZ | | |
| All ac | Bamboo Airways | Viet Nam | active | BAV | QH | in svc | 6 |
| All ac | Bangkok Airways | Thailand | active | BKP | PG | in svc | 12 |
| All ac | Bassaka Air | Cambodia | inop | BSX | 5B | | |
| All ac | Batavia Air | Indonesia | inop | BTV | Y6 | | |
| All ac | Batik Air | Indonesia | active | BTK | ID | in svc | 45 |
| All ac | BBN Airlines | Türkiye | active | BBT | B5 | in svc | 2 |
| All ac | BCM Airlines | Spain | inop | BCM | TY | | |
| All ac | Bees Airlines | Romania | active | UBE | 7B | in svc | 1 |
| All ac | Beijing Airlines | China | inop | BJN | | | |
| All ac | Belair | Switzerland | inop | BHP | 4T | | |
| All ac | Belgian Air Force | Belgium | active | BAF | | | |
| All ac | Belle Air | Albania | inop | LBY | LZ | | |
| All ac | Belle Air Europe | Italy | inop | BAL | L9 | | |
| All ac | BeOnd | Maldives | active | BYD | | in svc | 1 |
| All ac | Berkut Air | Kazakhstan | inop | BEC | | | |
| All ac | Berniq Airways | Libya | active | BNL | NB | in svc | 6 |
| All ac | BestAir | Türkiye | inop | BST | T1 | | |
| All ac | BH Air (Balkan Holidays) | Bulgaria | active | BGH | 8H | in svc | |
| All ac | BH Airlines | Bulgaria | inop | BON | JA | | |
| All ac | Bhutan Airlines (Tashi Air) | Bhutan | active | BTN | B3 | in svc | 2 |
| All ac | Bingo Airways | Poland | inop | BGY | | | |
| All ac | Blue Air | Romania | inop | BMS | 0B | | |
| All ac | Blue Moon Aviation | United States | inop | BWS | | | |
| All ac | Blue Wings | Germany | inop | BWG | QW | | |
| All ac | Bosnian Wand Airlines (BWA) | Bosnia | inop | HRM | H3 | | |
| All ac | BQB Lineas Aereas | Uruguay | inop | BEA | | | |
| All ac | Braathens International Airways | Sweden | active | BIX | TT | in svc | 6 |
| All ac | Braniff International Airways | United States | inop | BNF | BN | | |
| All ac | Brasilian Air Force | Brazil | active | BRS | | in svc | 1 |
| All ac | Bravo Airways | Ukraine | inop | BAY | | | |
| All ac | Britannia Airways | United Kingdom | inop | BAL | BY | | |
| All ac | British Airways | United Kingdom | active | BAW | BA | in svc | 132 |
| All ac | British Caledonian | United Kingdom | inop | LBY | | | |
| All ac | British Mediterranean Airways | United Kingdom | inop | LAJ | KJ | | |
| All ac | British Midland | United Kingdom | inop | BMA | BD | | |
| All ac | Brussels Airlines | Belgium | active | BEL | SN | in svc | 33 |
| All ac | Brussels International Airlines (BIA) | Belgium | inop | BXI | | | |
| All ac | Bul Air | Bulgaria | active | BVL | LB | | |
| All ac | Bulgaria Air | Bulgaria | active | LZB | FB | in svc | 3 |
| All ac | Bulgaria Government | Bulgaria | active | BGF | | in svc | 1 |
| All ac | Bulgarian Air Charter | Bulgaria | inop | BUC | | | |
| All ac | Bulgarian Eagle | Bulgaria | inop | BEG | | | |
| All ac | Buraq Air | Libya | active | BRQ | ZU | in svc | 1 |
| All ac | Business Aviation Asia (BAA) | China | active | BAA | | in svc | 3 |
| All ac | BWIA | Trinidad And Tobago | inop | BWA | BW | | |
| All ac | CAL Cargo Airlines | Israel | active | ICL | 5C | | |
| All ac | Caledonian Airways | United Kingdom | inop | CKT | KT | | |
| All ac | Camair Co | Cameroon | active | CRC | QC | | |
| All ac | Cambodia Airways | Cambodia | active | KME | KR | in svc | 5 |
| All ac | Cambodia Angkor Air | Cambodia | active | KHV | K6 | in svc | 2 |
| All ac | Canada 3000 | Canada | inop | CMM | 2T | | |
| All ac | Canada Jetlines | Canada | active | CJL | AU | in svc | 3 |
| All ac | Canadian Airlines International | Canada | inop | CDN | CP | | |
| All ac | Canair | Canada | inop | CWW | WW | | |
| All ac | Canarian Airways | Spain | active | OEW | 0X | | |
| All ac | Capital Airlines | China | active | CBJ | JD | in svc | 67 |
| All ac | Capo Verde Airlines | Capo Verde | inop | TCV | VR | | |
| All ac | Capo Verde Express | Capo Verde | inop | CVE | | | |
| All ac | Caribbean Airlines | Trinidad And Tobago | inop | BWA | BW | | |
| All ac | Carpartair | Romania | active | KRP | V3 | in svc | |
| All ac | Cathay Dragon | China | inop | HDA | KA | | |
| All ac | Cathay Pacific | China | active | CPA | CX | in svc | 12 |
| All ac | CCM Airlines | France | see CCM | CCM | XK | | |
| All ac | Cebgo | Philippines | inop | SRQ | DG | | |
| All ac | Cebu Pacific | Philippines | active | CEB | 5J | in svc | 58 |
| All ac | Celestair | Uganda | inop | 7 | | | |
| All ac | Centrum Air | Uzbekistan | active | MFX | | in svc | 3 |
| All ac | chair | Switzerland | active | GSW | GM | in svc | 4 |
| All ac | Cham Wings Airlines | Syrian | active | SAW | 6Q | in svc | 4 |
| All ac | Chang An Airlines | China | inop | CGN | 9H | | |
| All ac | Charlie Airlines | Cyprus | inop | CYP | | | |
| All ac | Chengdu Airlines | China | active | UEA | EU | in svc | 49 |
| All ac | Chex Air | United States | inop | c22 | | | |
| All ac | China Airlines | China | active | CAL | CI | in svc | 11 |
| All ac | China Eastern Airlines | China | active | CES | MU | in svc | 389 |
| All ac | China Eastern Executive Air | China | active | 8 | | | |
| All ac | China Eastern Jiangsu | China | active | CES1 | MU | | |
| All ac | China Eastern Zhejian | China | active | CES2 | MU | | |
| All ac | China Energy Company Limited | China | active | 9 | | | |
| All ac | China Express Airlines | China | active | HXA | G5 | in svc | 26 |
| All ac | China Northern Airlines | China | inop | CBF | CJ | | |
| All ac | China Northwest Airlines | China | inop | CNW | WH | | |
| All ac | China Sonangol International | China | inop | BJN | | | |
| All ac | China Southern Airlines | China | active | CSN | CZ | in svc | 316 |
| All ac | China United Airlines | China | active | CUA | KN | | |
| All ac | China West Air | China | active | CHB | PN | in svc | 40 |
| All ac | Chongqing Airlines | China | active | CQN | OQ | in svc | 29 |
| All ac | Citilink | Indonesia | active | CTV | QG | in svc | 49 |
| All ac | Citrus Airlines | Russian Federation | inop | CTU | | | |
| All ac | City Airlines | Germany | inop | LHX | VL | | |
| All ac | Clickair | Spain | inop | AIS | XG | | |
| All ac | CNAC - Zhejiang Airlines | China | inop | CCA | CA | | |
| All ac | Cobalt Air | Cyprus | inop | FCB | CO | | |
| All ac | CobraJet | Egypt | inop | COB | | | |
| All ac | Colorful Guizhou Airlines | China | active | CGZ | GY | in svc | 9 |
| All ac | Comair | South Africa | inop | CAW | MN | | |
| All ac | Comlux Aviation | Switzerland | active | CLA | | | |
| All ac | Comlux KZ | Kazakhstan | active | KAZ | | in svc | 1 |
| All ac | Comlux Malta | Malta | active | MLM | | in svc | 4 |
| All ac | Comlux San Marino | San Marino | active | SMC | | | |
| All ac | Comoro Island Airline | Comoro Island | inop | CIN | | | |
| All ac | Compagnie Africaine d' Aviation (CAA) | Congo | inop | FPY | BU | | 1 |
| All ac | Conair | Denmark | inop | OYC | KC | | |
| All ac | Condor | Germany | active | CFG | DE | in svc | 25 |
| All ac | Condor Berlin | Germany | inop | CIB | DE | | |
| All ac | Congo Airways | Congo | active | CGA | 8Z | in svc | 2 |
| All ac | Constellation International | Belgium | inop | CIN | CQ | | |
| All ac | ConViasa | Venezuela | active | VCV | V0 | in svc | 1 |
| All ac | Coral Jet | Bermuda | inop | COJ | | | |
| All ac | Corendon Airlines | Türkiye | active | CAI | XC | | |
| All ac | Corendon Airlines Europe | Türkiye | active | CXI | XR | | 1 |
| All ac | Corendon Dutch Airlines | Türkiye | active | CND | CD | | |
| All ac | Cosmo Airlines | Spain | inop | KOM | | | |
| All ac | Cretan Airlines | Greece | inop | KRT | C5 | | |
| All ac | Croatia Airlines | Croatia | active | CTN | OU | in svc | 4 |
| All ac | Cronos Airlines | Equatorial Guinea | inop | CRA | C8 | | |
| All ac | Crown Arlines | Libya | active | CWN | | in svc | 1 |
| All ac | CSA | Czechia | active | CSA | OK | in svc | 1 |
| All ac | Cubana | Cubana | active | CUB | CU | | |
| All ac | Cygnus Air | Spain | active | RGN | | in svc | |
| All ac | Cyprus Airways | Cyprus | inop | CYP | CY | | |
| All ac | Cyprus Airways | Cyprus | active | CYP | CY | in svc | 3 |
| All ac | Czech Republic Air Force | Czechia | active | CEF | | in svc | 2 |
| All ac | Daallo Airlines | Djibouti | inop | DAO | D3 | | |
| All ac | Daimler Chrysler Aviation (DC-Aviation) | Germany | active | DCS | | in svc | 2 |
| All ac | Dan Air | Romania | active | JOC | DN | in svc | 2 |
| All ac | Danish Air Transport | Denmark | active | DTR | DX | | 4 |
| All ac | Dart Airlines | Lithuania | inop | DAT | D4 | | |
| All ac | DC Aviation Malta | Malta | active | DCW | | in svc | 1 |
| All ac | Deer Air | China | inop | DER | DF | in svc | 2 |
| All ac | Deer Jet Business Avtn | China | active | BDJ | DF | in svc | 2 |
| All ac | Defence Research and Development Organisation | India | active | DADO | | in svc | |
| All ac | Delta Air Lines | United States | active | DAL | DL | in svc | 299 |
| All ac | Dena Airways | Iran | inop | DAI | | | |
| All ac | DHL | Germany | active | DHL | | in svc | |
| All ac | Discover Airlines | Germany | active | OCN | 4Y | in svc | 10 |
| All ac | DLR Flugbetrieb | Germany | active | LFO | | in svc | 1 |
| All ac | Dominican Wings | Dominican Republic | active | DWI | | | |
| All ac | Donavia | Russian Federation | inop | DNV | D9 | | |
| All ac | Donbassaero Airlines | Ukraine | inop | UDC | 7D | | |
| All ac | DOT LT | Lithuania | inop | DNU | R6 | | |
| All ac | Dragonair | China | inop | HDA | KA | | |
| All ac | Drukair | Bhutan | active | DRK | KB | in svc | 4 |
| All ac | Dubrovnik Airlines | Croatia | inop | DBK | 2D | | |
| All ac | DutchBird | Netherlands | inop | DBR | 5D | | |
| All ac | Eagle Aviation France | France | inop | EGN | | | |
| All ac | East Air | Tajikistan | active | ETJ | | | |
| All ac | East Star Air | China | inop | DXH | 8C | | |
| All ac | Eastok Avia | Kyrgyzstan | inop | EAA | | | |
| All ac | East-West Express | Ukraine | active | EWU | | | |
| All ac | EasyJet | United Kingdom | active | EZY | U2 | in svc | 176 |
| All ac | EasyJet Europe | Austria | active | EJU | EC | in svc | 129 |
| All ac | EasyJet Switzerland | Switzerland | active | EZS | DS | in svc | 30 |
| All ac | EAT Leipzig | Germany | active | BCS | OY | in svc | 6 |
| All ac | Edelweiss Air | Switzerland | active | EDW | WK | in svc | 14 |
| All ac | Egyptair | Egypt | active | MSR | MS | in svc | 15 |
| All ac | Eirjet | Ireland | inop | EIR | | | |
| All ac | El Al | Israel | active | ELY | LY | | |
| All ac | Electra Airways | Bulgaria | active | EAF | | in svc | 2 |
| All ac | Elevate Jet | United States | active | LVT | | | |
| All ac | Elite Air | Togo | inop | EAI | | | |
| All ac | Ellinair | Greece | inop | ELB | EL | | |
| All ac | Emirates | United Arab Emirates | active | UAE | EK | in svc | 1 |
| All ac | Enter Air | Poland | active | ENT | E4 | | |
| All ac | Eritrean Airlines | Eritrean | active | ERT | B8 | | |
| All ac | Ernest Airlines (Fly Ernest) | Italy | inop | ERN | EG | | |
| All ac | ETF Airways | Croatia | active | EZZ | LI | | |
| All ac | Etihad Airways | United Arab Emirates | active | ETD | EY | in svc | 21 |
| All ac | Eurocypria | Cyprus | inop | ECA | UI | | |
| All ac | Eurofly | Italy | inop | EEZ | GJ | | |
| All ac | Eurolot | Poland | active | ELO | K2 | | |
| All ac | European Air Charter | Bulgaria | active | BUC | H6 | in svc | 6 |
| All ac | Eurowings | Germany | active | EWG | EW | in svc | 91 |
| All ac | Eurowings Discover | Germany | inop | OCN | 4Y | | |
| All ac | Eurowings Europe | Austria | active | EWE | E2 | | 1 |
| All ac | Eurowings Europe Malta | Malta | active | EWL | E6 | in svc | 21 |
| All ac | Eva Airways | Taiwan | active | EVA | BR | in svc | 20 |
| All ac | Evelop Airlines | Spain | inop | EVE | E9 | | |
| All ac | Evergrande | China | active | 14 | | | |
| All ac | Everjets | Portugal | active | EVJ | | | |
| All ac | Excalibur Airways | China | inop | EXC | EQ | | |
| All ac | Express Freighters | Australia | active | EFA | QE | | |
| All ac | FAI Rent-A-Jet | Germany | inop | IFA | F3 | | |
| All ac | Fanair | Ukraine | active | FNR | | | |
| All ac | FastJet | Tanzania | inop | FTZ | FN | | |
| All ac | FastJet Zambia | Zambia | inop | FTZ | FN | | |
| All ac | FastJet Zimbabwe | Zimbabwe | inop | FJW | | | |
| All ac | Finnair | Finland | active | FIN | AY | in svc | 27 |
| All ac | First Cambodia Airlines | Cambodia | inop | FCC | F6 | | |
| All ac | First Choise Airways | United Kingdom | inop | FCA | DP | | |
| All ac | First Nation Airways | Nigeria | active | FRN | | | |
| All ac | FitsAir | Sri Lanka | active | EXV | 8D | in svc | 3 |
| All ac | Flitestar | South Africa | inop | GM | | | |
| All ac | Fly 365 | Romania | inop | FLA | | | |
| All ac | Fly Air41 Airways | Croatia | active | BER | | in svc | |
| All ac | Fly AllWays | Surinam | active | EDR | 8W | in svc | 1 |
| All ac | Fly Arna | Armenia | inop | ACY | G6 | | |
| All ac | Fly Aruba | Aruba | inop | ARU | AG | | |
| All ac | Fly Arystan | Kazakhstan | active | KZR | KC | in svc | 20 |
| All ac | Fly Baghdad | Iraq | active | FBA | | | |
| All ac | Fly FTI | Germany | inop | FTI | BZ | | |
| All ac | FLy Hellas | Greece | inop | VKH | VQ | | |
| All ac | Fly Jinnah | Pakistan | active | FJL | | in svc | 5 |
| All ac | FLy Jordan | Jordan | active | FJR | | | |
| All ac | FLy Lili | Romania | active | LIL | | in svc | 2 |
| All ac | Fly Olympic | Greece | inop | OAL | | | |
| All ac | Fly2Sky | Bulgaria | active | VAW | F6 | in svc | |
| All ac | Flyadeal | Saudi Arabia | active | FAD | F3 | in svc | 32 |
| All ac | FlyBosnia | Bosnia | active | FBS | 6W | | |
| All ac | flyCAA | Congo | active | FPY | BU | in svc | 1 |
| All ac | FlyEgypt | Egypt | active | FEG | FT | | 1 |
| All ac | FlyGeorgia | Georgia | inop | FGE | 9Y | | |
| All ac | Flying Colours Airlins | United Kingdom | inop | FCL | MT | | |
| All ac | FlyLAL | Lithuania | inop | LIL | TE | | |
| All ac | Flynas | Saudi Arabia | active | KNE | XY | in svc | 55 |
| All ac | FlyNiki | Austria | inop | NLY | HG | | |
| All ac | FlyOne | Moldova | active | FIA | 5F | in svc | 2 |
| All ac | FlyOne Armenia | Armenia | active | FIE | 3F | in svc | 3 |
| All ac | FlyOne Romania | Romania | active | FOE | OE | in svc | 1 |
| All ac | FlyOya | Libya | active | YI | YI | in svc | 1 |
| All ac | FlyRAK | United Arab Emirates | inop | FRB | | | |
| All ac | flyVista | Georgia | inop | AJD | | | |
| All ac | Flyyo | Romania | active | DIR | D4 | in svc | |
| All ac | Freebird Airlines | Türkiye | active | FHY | FH | in svc | 7 |
| All ac | Freebird Airlines Europe | Türkiye | active | FHM | | in svc | 3 |
| All ac | Freedom Air | Australia | inop | FOM | SJ | | |
| All ac | Freedom Airlines Express | Kenya | active | FDT | 4F | in svc | 1 |
| All ac | French Air Force | France | active | CTM | | | |
| All ac | Frontier Airlines | United States | active | FFT | F9 | in svc | 143 |
| All ac | GainJet Aviation | Greece | active | GNJ | | | |
| All ac | Galistair Malta | Malta | active | GTR | GH | in svc | 1 |
| All ac | Gama Aviation | United Arab Emirates | active | GSH | | in svc | 1 |
| All ac | Gambia Bird | Gambia | inop | GBQ | 3G | | |
| All ac | Garuda Indonesia Airways | Indonesia | see CTV | GIA | GA | | |
| All ac | GB Airways | United Kingdom | inop | GBL | GT | | |
| All ac | GCL Poly Energy | Hong Kong | inop | | | | |
| All ac | Georgian National Airlines | United Kingdom | Inop | GFG | QB | | |
| All ac | German Air Force (GAF) | Germany | active | GAF | | in svc | 6 |
| All ac | Germania | Germany | inop | GMI | ST | | |
| All ac | Germania Flug | Switzerland | inop | GSW | GM | | |
| All ac | Germanwings | Germany | inop | GWI | 4U | | |
| All ac | GetJet Airlines | Lithuania | active | GJT | GW | | |
| All ac | Getjet Airlines Latvia | Latvia | active | DML | | | |
| All ac | GetJet Airlines Malta | Malta | active | GJM | | | |
| All ac | Ghadames Air Transport | Libya | inop | GMS | NJ | | |
| All ac | Ghana Airways | Ghana | inop | GHA | GH | | |
| All ac | Glamour Aviation | Saudi Arabia | inop | 19 | | | |
| All ac | Global Airways | Lithuania | active | GBL | | | |
| All ac | Global Aviation | South Africa | active | GBB | GE | | 1 |
| All ac | Global Jet Aruba | Aruba | active | GJW | | in svc | 1 |
| All ac | Global Jet Luxembourg | Luxembourg | active | SVW | | in svc | 2 |
| All ac | GlobalX Airlines | United States | active | GXA | G6 | in svc | 14 |
| All ac | GlobalX Cargo | United States | active | GXAc | | | |
| All ac | Go First | India | active | GOW | G8 | | |
| All ac | GoAir | India | inop | GOW | G8 | | |
| All ac | Golden Myanmar Airlines | Myanmar | active | GMR | Y5 | | |
| All ac | Goodjet | Sweden | inop | | | | |
| All ac | Government of the Republic of Uzbekistan | Uzbekistan | VIP | UZB | | in svc | 3 |
| All ac | Government of the United Kingdom | United Kingdom | active | KRH | | in svc | 1 |
| All ac | GOWAIR Vacation Airlines, / Aura Airlines | Spain | inop | GWR | | | |
| All ac | GP Aviation | Bulgaria | active | GPX | IV | in svc | 3 |
| All ac | Grand Cru Airlines | Lithuania | active | GCA | | | |
| All ac | Great Dane Airlines | Denmark | inop | GDE | DW | | |
| All ac | Greece Airways | Greece | inop | GRE | 1X | | |
| All ac | Greenfly | United States | inop | | | | |
| All ac | Greenjet Airlines | Greece | active | GRJ | | | |
| All ac | Gulf Air | Bahrain | active | GFA | GF | in svc | 30 |
| All ac | GX Airlines (Guangxi Beibu Gulf Air) | China | active | CBG | GX | in svc | 12 |
| All ac | Hainan Airlines | China | active | CHH | | | |
| All ac | Hamburg Airways | Germany | inop | HAY | HK | | |
| All ac | Hamburg International | Germany | inop | HHI | 4R | | |
| All ac | Harry Ayoade Akande | | active | | | | |
| All ac | Hawaiian Airlines | United States | active | HAL | HA | in svc | 17 |
| All ac | Hebei Airlines | China | inop | HBH | NS | | |
| All ac | Helios Airways | Greece | inop | HCY | ZU | | |
| All ac | Hellas Jet | Greece | inop | HEJ | T4 | | |
| All ac | Hello | Switzerland | inop | FHE | HW | | |
| All ac | Helvetic Airways | Switzerland | inop | OAW | 2L | | |
| All ac | Hemus Air | Bulgaria | inop | HMS | DU | | |
| All ac | Hermes Airlines | Greece | inop | HRM | H3 | | |
| All ac | Heston Airlines | Lithuania | active | HST | HN | in svc | 3 |
| All ac | HiFly | Portugal | active | HFY | K5 | | |
| All ac | HiFly Malta | Malta | active | HFM | 5M | | |
| All ac | Himalaya Airlines | Himalaya | active | HIM | H9 | in svc | 4 |
| All ac | HiSky | Moldova | active | HYM | H7 | in svc | 1 |
| All ac | HiSky Europe | Romania | active | HYS | H4 | in svc | 6 |
| All ac | Hola Airlines | Spain | inop | HOA | H5 | | |
| All ac | Holiday Air | Türkiye | inop | HLD | HW | | |
| All ac | Holiday Europe | Bulgaria | active | HES | 5Q | | |
| All ac | HolidayJet | Switzerland | inop | GSW | | | |
| All ac | Holidays Czech Airlines | Czechia | inop | HCC | HC | | |
| All ac | Hong Kong Airlines | China | active | CRK | HX | in svc | 10 |
| All ac | Hong Kong Express | China | active | HKE | UO | in svc | 35 |
| All ac | Hong Kong Jet | China | active | HKJ | | | |
| All ac | Hongtu Airlines (Yunnan Hongtu) | China | inop | HTU | A6 | | |
| All ac | HOP | France | inop | HOP | A5 | | |
| All ac | Humo Air | Uzbekistan | inop | USW | HJ | in USW | |
| All ac | Hungarian Air Force | Hungary | active | HUF | | in svc | 2 |
| All ac | Hunnu Air | Mongolia | inop | MML | MR | | |
| All ac | Hyperion Aviation | Malta | inop | HYP | | | |
| All ac | Iberia | Spain | active | IBE | IB | in svc | 51 |
| All ac | Iberia Express | Spain | active | IBS | I2 | in svc | 24 |
| All ac | Iberojet | Spain | active | EVE | I3 | in svc | 1 |
| All ac | Iberworld | Spain | inop | IWD | TY | | |
| All ac | Ibom Air | Nigeria | active | IAN | IQ | in svc | |
| All ac | Iceland Express | Iceland | inop | HC | HC | | |
| All ac | Icelandair | Iceland | active | ICE | FI | | |
| All ac | I-Fly | Russian Federation | active | RSY | I4 | | |
| All ac | Independence Air | United States | inop | DIE | | | |
| All ac | Indian | India | inop | IAC | IC | | |
| All ac | Indian Airlines | India | inop | IAC | IC | | |
| All ac | Indigo | India | active | IGO | 6E | in svc | 270 |
| All ac | Indigo Cargo | India | active | IGO | | in svc | 2 |
| All ac | Indonesia Air Transport | Indonesia | inop | IDA | | | |
| All ac | Indonesia AirAsia | Indonesia | active | AWQ | QZ | in svc | 30 |
| All ac | Indonesia AirAsia X | Indonesia | inop | IDX | XT | | |
| All ac | Int'Air Ilies | Comoro Island | inop | IIA | | | |
| All ac | Inter Airlines | Türkiye | inop | INX | 6K | | |
| All ac | Inter European Airways | United Kingdom | inop | IEA | IP | | |
| All ac | Interjet | Mexico | inop | AIJ | 4O | | |
| All ac | IrAero | Russian Federation | active | IAE | IO | in svc | 1 |
| All ac | Iran Air | Iran | active | IRA | IR | in svc | 4 |
| All ac | Iran Airtours | Iran | active | IRB | B9 | in svc | 1 |
| All ac | Iran Aseman Airlines | Iran | active | IRC | EP | in svc | 1 |
| All ac | Iraqi Airways | Iraq | active | IAW | IA | in svc | 4 |
| All ac | Islamic Republic of Iran | Iran | active | IRAN | | in svc | 1 |
| All ac | Israir | Israel | active | ISR | 6H | in svc | 6 |
| All ac | ITA Airways | Italy | active | ITY | AZ | in svc | 62 |
| All ac | ITA Transportes Aereos | Brazil | inop | IPM | 8I | | |
| All ac | Italian Air Force | Italy | active | IAM | | in svc | 3 |
| All ac | IZair | Türkiye | inop | IZR | 4I | | |
| All ac | Japan Air System | Japan | inop | JAS | | | |
| All ac | Jazeera Airways | Kuwait | active | JZR | J9 | in svc | 23 |
| All ac | JC International Airlines | Cambodia | active | JCC | QD | | |
| All ac | Jet Airlines | Romania | inop | JUS | UR | | |
| All ac | Jet Airways | India | inop | JAI | 9W | | |
| All ac | Jet Aviation Business Jets | Switzerland | active | PJS | PP | in svc | 1 |
| All ac | Jet Time | Denmark | inop | JTG | JO | | |
| All ac | Jet2 | United Kingdom | active | EXS | LS | in svc | 12 |
| All ac | Jetairfly | Belgium | active | TUB | | | |
| All ac | Jetalliance | Austria | inop | JAG | | | |
| All ac | JetBlue | United States | active | JBU | B6 | in svc | 218 |
| All ac | JetClub | chile | inop | JCS | | | |
| All ac | JetSMART | Chile | active | JAT | JA | in svc | 23 |
| All ac | JetSMART Argentina | Argentina | active | JES | WJ | in svc | 8 |
| All ac | JetSMART Colombia | Colombia | active | JEC | J6 | in svc | 2 |
| All ac | JetSMART Peru | Peru | active | JAP | JZ | in svc | 2 |
| All ac | Jetstar Airways | Australia | active | JST | JQ | in svc | 68 |
| All ac | Jetstar Asia | Singapore | active | JSA | 3K | in svc | 8 |
| All ac | Jetstar Hongkong | Hong Kong | inop | LKT | | | |
| All ac | Jetstar Japan | Japan | active | JJP | GK | in svc | 22 |
| All ac | Jetstar Pacific Airlines | Viet Nam | inop | PIC | BL | | |
| All ac | Jettime | Denmark | active | JTD | | | |
| All ac | JMC Airlines | United Kingdom | inop | JMC | MT | | |
| All ac | Jonika Airlines | Ukraine | active | JNK | | | |
| All ac | JOON | France | inop | JON | JN | | |
| All ac | Joot Aviation Project | Germany | inop | NGN | | | |
| All ac | Jordan Aviation | Jordan | active | JAV | R5 | | |
| All ac | Jordanian Gvmt | Jordan | active | RJA | RJ | | |
| All ac | Jubba Airways Kenia | Kenya | active | JBW | 6J | | |
| All ac | Jubba Airways Somalia | Somalia | active | JUB | 3J | | |
| All ac | Juneyao Airlines | China | active | DKH | HO | in svc | 87 |
| All ac | Just-us Air | Romania | inop | JOC | | | |
| All ac | K 5 Aviation | Germany | active | KAY | | in svc | 3 |
| All ac | Kabo Air | Nigeria | inop | QNK | | | |
| All ac | Kalair | United States | active | 24 | | in svc | 1 |
| All ac | Kam Air | Afghanistan | active | KMF | RQ | | |
| All ac | Karthago Airlines | Tunesia | inop | KAJ | 5R | | |
| All ac | Kazakhstan Government | Kazakhstan | active | BEC | | in svc | 2 |
| All ac | KC International Airlines | Cambodia | inop | KCH | 3Q | | |
| All ac | Khalifa Airways | Algeria | inop | KZW | K6 | | |
| All ac | Khors Aircompany | Russian Federation | inop | KHO | KO | | |
| All ac | Kingdom Holding | Saudi Arabia | inop | 25 | | | |
| All ac | Kingdom of Cambodia | Cambodia | active | 26 | | | |
| All ac | Kingfisher Airlines | India | inop | KFR | IT | | |
| All ac | Kingfisher Red | India | inop | KFR | IT | | |
| All ac | Kish Air | Iran | active | KIS | Y9 | in svc | 2 |
| All ac | Kiwi Travel International Airlines | New Zealand | inop | KIC | KC | | |
| All ac | KLM Cityhopper | Netherlan | active | KLC | WA | in svc | 1 |
| All ac | KM Malta Airlines | Malta | active | KMM | KM | in svc | 8 |
| All ac | Kolavia | Russian Federation | inop | KGL | 7K | | |
| All ac | Kolavia Airlines | Russian Federation | inop | KGL | 7K | | |
| All ac | Koral Blue | Egypt | inop | KBR | K7 | | |
| All ac | Korean Air Lines | Korea | active | KAL | KE | in svc | 10 |
| All ac | KTHY Cyprus Turkish Airlines | Türkiye | inop | KVY | YK | | |
| All ac | Kuban Airlines | Russian Federation | inop | KIL | GW | | |
| All ac | Kulula | South Africa | active | CAW | MN | | |
| All ac | Kuwait Airways | Kuwait | active | KAC | KU | in svc | 16 |
| All ac | Kyrgyz Airways | Kyrgyzstan | active | KGZ | | | |
| All ac | Kyrgyzstan Aircompany | Kyrgyzstan | inop | LYN | QH | | |
| All ac | La Compagnie | France | active | DJT | B0 | in svc | 2 |
| All ac | LACSA | Costa Rica | inop | LRC | LR | | |
| All ac | LAN Airlines | Chile | inop | LAN | LA | | |
| All ac | LAN Argentina | Argentina | inop | DSM | 4M | | |
| All ac | LAN Chile | Chile | inop | LAN | LA | | |
| All ac | LAN Colombia | Colombia | inop | ARE | 4C | | |
| All ac | LAN Ecuador | Ecuador | inop | LNE | XL | | |
| All ac | LAN Express | Chile | inop | LXP | LU | | |
| All ac | LAN Peru | Peru | inop | LPE. | LP | | |
| All ac | Lanmei Airlines | Cambodia | active | MKR | LQ | in svc | 1 |
| All ac | Lao Airlines | Lao | active | LAO | QV | in svc | 4 |
| All ac | LAPSA Air Paraguay | Paraguay | inop | LAP | PZ | | |
| All ac | LAT Charter Airlines | Latvia | inop | LTC | 6Y | | |
| All ac | LATAM Airlines Argentinia | Argentina | inop | DSM | 4M | | |
| All ac | LATAM Airlines Brasil | Brazil | active | TAM | JJ | in svc | 131 |
| All ac | LATAM Airlines Chile | Chile | active | LAN | LA | in svc | 93 |
| All ac | LATAM Airlines Colombia | Colombia | active | ARE | 4C | in svc | 18 |
| All ac | LATAM Airlines Ecuador | Ecuador | active | LNE | XL | in svc | 5 |
| All ac | LATAM Airlines Peru | Peru | active | LPE | LP | in svc | 9 |
| All ac | Lattitude Hub | Spain | inop | OEW | OX | | |
| All ac | Lauda Air | Austria | inop | LDA | NG | | |
| All ac | Lauda Europe | Austria | active | LDA | LW | in svc | 27 |
| All ac | Laudamotion | Austria | inop | LDM | OE | | |
| All ac | Leav Aviation | Germany | active | NGN | KK | in svc | 2 |
| All ac | Lebanon Sky Aviation | Lebanon | active | LSY | | | |
| All ac | Leisure Air | United Kingdom | inop | LWD | | | |
| All ac | Leisure International Airways | United Kingdom | inop | ULE | MV | | |
| All ac | Level (Anisec) | China | inop | FOO | VK | | |
| All ac | Levu Air Cargo | Brazil | active | levu | | | |
| All ac | LGW - Luftfahrtgesellschaft Walter | Germany | inop | LGW | HE | | |
| All ac | Libyan Airlines | Libya | active | LAA | LN | in svc | 2 |
| All ac | Libyan Wings | Libya | active | LWA | YL | in svc | 4 |
| All ac | Lift Airline | South Africa | active | GBB | GE | in svc | 5 |
| All ac | Lily Jet | China | active | MZT | | in svc | 1 |
| All ac | Limitless Airways | Croatia | inop | LIM | | | |
| All ac | Livingston Compagnia Aerea | Italy | inop | NLV | JN | | |
| All ac | Livingston Energy Flight | Italy | inop | LVG | LM | | |
| All ac | Liza Transport International | Burkina Faso | active | LTI | | in svc | 1 |
| All ac | Longjiang Airlines | China | active | SNG | LT | in svc | 8 |
| All ac | Loong Air | China | active | CDC | GJ | in svc | 68 |
| All ac | LOT Polish Airlines | Poland | active | LOT | LO | | |
| All ac | Lotus Air | Egypt | inop | TAS | LU | | |
| All ac | LTE | Spain | inop | LTE | XO | | |
| All ac | LTU | Germany | inop | LTU | LT | | |
| All ac | LTU Austria | Austria | inop | LTO | L3 | | |
| All ac | Lucky Airlines (HNA) | China | active | LKE | 8L | in svc | 13 |
| All ac | Lufthansa | Germany | active | DLH | LH | in svc | 180 |
| All ac | Lufthansa Cargo | Germany | active | GEC | LH | in svc | 4 |
| All ac | Lufthansa City | Germany | active | LHX | VL | | |
| All ac | Lufthansa CityLine | Germany | active | CLH | CL | | |
| All ac | Lufthansa Italia | Italy | inop | LIT | LU | | |
| All ac | Lufthansa Technik | Germany | inop | LHT | | | |
| All ac | Lynx Air | Lithuania | active | DAT | Y9 | | |
| All ac | M Jet | Austria | active | MJF | | in svc | 1 |
| All ac | Maersk Air | Denmark | inop | DAM | DM | | |
| All ac | Magic Air | | active | M1A | | | |
| All ac | Mahan Air | Iran | inop | IRM | W5 | | |
| All ac | Malaysia Airlines | Malaysia | inop | MAS | MH | | |
| All ac | Malaysian Goverment | Malaysia | active | MAS | | in svc | 2 |
| All ac | Maldivian | Maldivian | active | DQA | Q2 | in svc | 1 |
| All ac | Malta MedAir | Malta | active | MMO | MT | in svc | 1 |
| All ac | Mandala Airlines | Indonesia | inop | MDL | RI | | |
| All ac | Mandala Indonesia | Indonesia | inop | MDL | RI | | |
| All ac | Mandarin Airlines | China | active | MDA | AE | | |
| All ac | Mango | South African | active | MNO | JE | in svc | 1 |
| All ac | Marabu Airlines | Germany | active | MBU | DI | in svc | 7 |
| All ac | Martinair | Netherlands | inop | MPH | MP | | |
| All ac | Masterjet | Russian Federation | active | LMJ | | in svc | |
| All ac | Mauritania Airlines | Mauritania | active | MAI | L6 | | |
| All ac | Mauritania Airways | Mauritania | active | MTW | YD | | |
| All ac | Mavi Gök Airlines | Türkiye | active | MGA | 4M | in svc | |
| All ac | MCA Airlines | Sweden | inop | | | | |
| All ac | MedSky Airways | Malta | active | MED | | | |
| All ac | MedSky Airways | Malta | active | MNS | BM | in svc | 2 |
| All ac | MenaJet | Lebanon | inop | MNJ | IM | | |
| All ac | Meraj Airlines | Iran | active | MRJ | JI | in svc | 7 |
| All ac | Meridian Avia | | Active | MMM | | in svc | 1 |
| All ac | Meridiana | Italy | inop | ISS | IG | | |
| All ac | MeridianaFly | Italy | inop | ISS | IG | | |
| All ac | MetroJet | Russian Federation | inop | KGL | 7K | | |
| All ac | Mexicana Airlines | Mexico | inop | MXA | MX | | |
| All ac | Mid East Jet | Russian Federation | active | 29 | | | |
| All ac | Middle East Airlines (MEA) | Lebanon | active | MEA | ME | in svc | 14 |
| All ac | Midway Airlines | United States | inop | MDW | JI | | |
| All ac | Mihin Lanka | Sri Lanka | inop | MLR | MJ | | |
| All ac | Minth Group | Taiwan | active | EVA1 | BR | | |
| All ac | MNG Airlines | Türkiye | active | MNB | MB | in svc | 2 |
| All ac | Monarch Airlines | United Kingdom | inop | MON | ZB | | |
| All ac | Mondair | Myanmar | inop | MMA | | | |
| All ac | Mongolian Airlines | Mongolia | inop | MGL | OM | | |
| All ac | Mongolian Airways | Mongolia | active | MGW | XF | | |
| in svc | My Jet Xpress Airlines | Malaysia | new | NEP | N7 | | |
| All ac | My Travel Airways | China | inop | VKG | DK | | |
| All ac | My Travel Lite | United Kingdom | inop | MYL | VZ | | |
| All ac | MyAir | Italy | inop | MYW | I8 | | |
| All ac | MYAirline | Malaysia | inop | MYM | Z9 | | |
| All ac | Myanmar Airways International | Myanmar | active | MMA | 8M | in svc | 7 |
| All ac | MyTravel | China | inop | MYT | VZ | | |
| All ac | MyWings | Kosovo | active | TDR | | | |
| All ac | NAS Air | Saudi Arabia | inop | KNE | XY | | 1 |
| All ac | National Air Charter | Indonesia | inop | NSR | | | |
| All ac | National Air Services (NAS) | Saudi Arabia | active | NAS | UE | in svc | |
| All ac | Nellla Airlines | Brazil | active | NEL | | in svc | |
| All ac | Neos | Italy | active | NOS | NO | | |
| All ac | Nepal Airlines | China | active | RNA | RA | in svc | 2 |
| All ac | Nesma Airlines | Egypt | active | NMA | NE | in svc | 3 |
| All ac | Nesma Airlines Saudi Arabia | Saudi Arabia | active | NSS | NA | | |
| All ac | Network Aviation | Australia | active | NWK | | | |
| All ac | Newloong Air | China | inop | QDA | QW | | |
| All ac | Nexus Flight Operation | | active | 30 | | | |
| All ac | Nexus Flight Operation | Saudi Arabia | inop | NXU | | | |
| All ac | NG Eagle | Nigeria | active | XLE | | in svc | |
| All ac | Nice Air | Iceland | new | nice | | | |
| All ac | Niki | Austria | inop | NLY | HG | | |
| All ac | Nile Air | Egypt | active | NIA | NP | in svc | 7 |
| All ac | Nomad Aviation | Switzerland | active | NUM | | in svc | 1 |
| All ac | Nordavia Regional Airlines | Russian Federation | inop | AUL | 5N | | |
| All ac | Nordica | Estonia | active | NDA | ND | | |
| All ac | Nordica Regional Jet | Estonia | active | EST | EE | | |
| All ac | Nordwind Airlines | Russian Federation | active | NWS | N4 | in svc | 7 |
| All ac | Northeast Airlines | China | inop | DBH | NS | | |
| All ac | North-West Air Company | Russian Federation | active | NWC | 0E | in svc | 3 |
| All ac | Northwest Airlines | United States | inop | NWA | NW | | |
| All ac | Norwegian Air International | Ireland | inop | IBK | D8 | | |
| All ac | Norwegian Air Shuttle | Norway | inop | NOZ | DY | | |
| All ac | Norwegian Air Shuttle | Norway | active | NOZ | DY | | |
| All ac | Norwegian Air Sweden | Sweden | active | NSZ | D8 | | |
| All ac | Norwegian Air UK | United Kingdom | inop | NRS | DI | | |
| All ac | Nouvelair | Tunesia | active | LBT | BJ | in svc | 14 |
| All ac | Novair | Sweden | active | NVR | N9 | | |
| All ac | Nyx Air | Estonia | active | NYX | NJ | | |
| All ac | Oasis International Airlines | Spain | inop | AAN | OB | | |
| All ac | OLT | Germany | inop | OLT | OL | | |
| All ac | OLT Express | Germany | inop | OLT | OL | | |
| All ac | Olympic Air | Greece | inop | OAL | OA | | |
| All ac | Olympus Airways | Greece | inop | OLY | | | |
| All ac | Oman Air | Oman | inop | OMA | WY | | |
| All ac | Oman Royal Flight | Oman | active | ORF | RS | in svc | 2 |
| All ac | Omni Air International | United States | inop | OAV | X9 | | |
| All ac | One Airways | Spain | active | OEW | 0X | | |
| All ac | Onur Air | Türkiye | inop | OHY | 8Q | | |
| All ac | Orange2Fly | Greece | inop | OTF | O4 | | |
| All ac | Orbest | Portugal | inop | OBS | 6O | | |
| All ac | Orbest Orizomia Airlines | Spain | inop | IWD | 6O | | |
| All ac | PAB AirWings | United Arab Emirates | active | UAP | | in svc | 1 |
| All ac | Pacific Airlines | Viet Nam | active | PIC | BL | in svc | |
| All ac | Pakistan Air Force | Pakistan | active | PAF | | in svc | 1 |
| All ac | Pakistan International Airlines | Pakistan | active | PIA | PK | in svc | 17 |
| All ac | PAL Express | Philippines | active | GAP | 2P | in svc | 5 |
| All ac | Pan Pacific Airlines | Philippines | inop | AAV | 8Y | | |
| All ac | PanAm | United States | inop | PAA | PA | | |
| All ac | Panorama Airways | Uzbekistan | active | UZP | 5P | in svc | 3 |
| All ac | Peach Airlines | Japan | active | APJ | MM | in svc | 36 |
| All ac | Pegasus Airlines | Türkiye | active | PGT | PC | in svc | 95 |
| All ac | Pelita Air | Indonesia | active | PAS | 6D | in svc | 11 |
| All ac | Petra Airlines | Jordan | inop | PTR | 9P | | |
| All ac | Philippines AirAsia | Philippines | active | APG | Z2 | in svc | 24 |
| All ac | Philippines Airlines | Philippines | active | PAL | PR | in svc | 39 |
| All ac | PLAAF - People Liberation Army Air Force | China | active | PLAAF | C2C | in svc | 3 |
| All ac | Play | Iceland | active | FPY | OG | in svc | 10 |
| All ac | Poste Air Cargo | Italy | active | MSA | M4 | in svc | 2 |
| All ac | Pradhaan Air Express | India | active | P01 | | in svc | 1 |
| All ac | Premiair | Denmark | inop | VKG | DK | | |
| All ac | Presidential Flight | United Arab Emirates | active | AUH | MO | in svc | |
| All ac | Prime Aviation | Kazakhstan | VIP | PKZ | | in svc | 1 |
| All ac | Primera Air Nordic | Latvia | inop | PRW | 6F | | |
| All ac | Primera Air Scandinavia | Denmark | inop | PRI | PF | | |
| All ac | Privajet | Malta | inop | | | | |
| All ac | Privat Air | Switzerland | inop | PTI | PT | | |
| All ac | Privatair Germany | Germany | inop | PTG | PT | | |
| All ac | Private | | active | pvt | | in svc | |
| All ac | Private Wings | Germany | active | PWF | | | |
| All ac | Privilege Style | Spain | active | PVG | P6 | in svc | 2 |
| All ac | Qanot Sharq Airlines | Uzbekistan | active | QNT | | in svc | 4 |
| All ac | Qantas | Australia | active | QFA | QF | | |
| All ac | Qantas Freight | Australia | active | QFA | QF | in svc | 4 |
| All ac | QantasLink | Australia | active | QLK | QF | in svc | 16 |
| All ac | Qatar Airways | Qatar | active | QTR | QR | in svc | 31 |
| All ac | Qatar Amiri Flight | Qatar | active | QAF | | in svc | 4 |
| All ac | Qazaq Air | Kazakhstan | active | QAZ | IQ | | |
| All ac | Qeshm Air | Iran | active | QSM | QB | in svc | 2 |
| All ac | Qingdao Airlines | China | active | QDA | QW | in svc | 36 |
| All ac | Queens Air | | active | QNA | OQ | | |
| All ac | R Airlines | Thailand | inop | RCT | | | |
| All ac | Rahila Airlines | Libya | inop | RIH | | | |
| All ac | RAK-Airways | United Arab Emirates | inop | RKM | RT | | |
| All ac | Raya Airways | Malaysia | new | RMY | TH | in svc | 3 |
| All ac | RayaJet | Jordan | inop | RYT | | | |
| All ac | Red Air | Dominican Republic | active | REA | L5 | in svc | 1 |
| All ac | Red Wings Airlines | Russian Federation | active | RWZ | WZ | | |
| All ac | Regionair | Singapore | inop | RGA | 7S | | |
| All ac | Republique de Cote d'Ivoire | Côte d'Ivoire | active | IVY | | in svc | 2 |
| All ac | Rizon Jet | Qatar | inop | RZJ | | | |
| All ac | Roots Air | Canada | inop | SSV | 6J | | |
| All ac | Rossiya - Russian Airlines | Russian Federation | active | SDM | FV | in svc | 24 |
| All ac | Rotana Jet Aviation | United Arab Emirates | active | RJD | RG | in svc | 1 |
| All ac | Royal Air Force | United Kingdom | active | RRR | RR | | |
| All ac | Royal Air Force of Oman | Oman | active | MJN | | in svc | 3 |
| All ac | Royal Air Maroc | Morocco | active | RAM | AT | | 2 |
| All ac | Royal Air Philippines | Philippines | active | RYL | RW | in svc | 3 |
| All ac | Royal Airlines | Canada | inop | ROY | QN | | |
| All ac | Royal Brunei Airlines | Brunei | active | RBA | BI | in svc | 8 |
| All ac | Royal Falcon Airlines | Jordan | active | RFJ | RF | | |
| All ac | Royal Jordanian Airlines | Jordan | active | RJA | RJ | in svc | 16 |
| All ac | Royal Khmer | Cambodia | inop | RKH | FE | | |
| All ac | Royal Thai Air Force | Thailand | active | R1T | | in svc | 3 |
| All ac | Royal Wings | Jordan | active | RYW | RW | | |
| All ac | Rusjet | Russian Federation | active | RSJ | | in svc | 1 |
| All ac | Rusline | Russian Federation | inop | RLU | RG | | |
| All ac | Russia Special Detachment | Russian Federation | active | RSD | | in svc | 2 |
| All ac | Ryan International Airlines | United States | inop | RYN | RD | | |
| All ac | Ryanair | Ireland | active | RYR | FR | | |
| All ac | S7 Siberia Airlines | Russian Federation | active | SBI | S7 | in svc | 52 |
| All ac | Saarland Airlines | Germany | inop | SLL | QW | | |
| All ac | Sabena | Belgium | inop | SAB | SN | | |
| All ac | Sabre Airways | Belgium | inop | SBE | JN | | |
| All ac | SAETA Air Ecuador | Ecuador | inop | SET | EH | | |
| All ac | Safe Air | Kenya | active | SAQ | K3 | | |
| All ac | Safi Airways | Afganistan | inop | SFW | 4Q | | |
| All ac | Saga Airlines | Türkiye | inop | SGX | 2J | | |
| All ac | Salam Air | Oman | active | OMS | OV | in svc | 14 |
| All ac | Sands Aviation | United States | active | LVS | | in svc | 2 |
| All ac | SANY | China | active | | | | |
| All ac | SAS | Sweden | active | SAS | SK | in svc | 57 |
| All ac | SAS Connect | Ireland | active | SZS | SL | in svc | 30 |
| All ac | SAS Ireland | Ireland | inop | SZS | SL | | |
| All ac | Sata International | Azores | inop | RZO | S4 | | |
| All ac | Saudi Arabian Airlines | Saudi Arabia | active | SVA | SV | in svc | 56 |
| All ac | Saudi Gulf Airlines | Saudi Arabia | inop | SGQ | 6S | | |
| All ac | Saudi Private Aviation | Saudi Arabia | active | SPA | | | |
| All ac | Saudi Royal Flight | Saudi Arabia | active | SVAX | | in svc ac | 1 |
| All ac | ScanBlu Airlines | Sweden | inop | CBU | | | |
| All ac | Scoot | Singapore | active | TGW | TR | in svc | 26 |
| All ac | Seagle Air | Slovakia | inop | CGL | SJ | | |
| All ac | SEAir | Philippines | inop | SRQ | DG | | |
| All ac | Senegal Airlines | Senegal | inop | SGG | DN | | |
| All ac | Senegal Goverment | Senegal | active | SG1 | | in svc | 2 |
| All ac | Shaheen Air | Pakistan | inop | SAI | NL | | |
| All ac | Shanghai Airlines | China | inop | CSH | FM | | |
| All ac | Sharjah Rulers Flight | United Arab Emirates | active | SHJ | | in svc | 1 |
| All ac | Shenzhen Airlines | China | active | CSZ | ZH | in svc | 107 |
| All ac | Shorouk Air | Egypt | inop | SHK | 7Q | | |
| All ac | Sichuan Airlines | China | active | CSC | 3U | in svc | 173 |
| All ac | Siem Reap Airways | Cambodia | inop | SRH | FT | | |
| All ac | Silk Air | Singapore | active | SLK | MI | | |
| All ac | Simplifly Deccan | India | inop | DKN | DN | | |
| All ac | Singapore Airlines | Singapore | inop | SIA | SQ | | |
| All ac | Sino Jet | China | active | 31N | | in svc | 1 |
| All ac | SK Telecom | Korea | active | 39 | | | |
| All ac | Sky Airline | Chile | active | SKU | H2 | in svc | 32 |
| All ac | Sky Airlines | Türkiye | inop | SHY | ZY | | |
| All ac | Sky Angkor Airlines | Cambodia | active | SWM | ZA | in svc | 3 |
| All ac | Sky Bosnia | Bosnia And Herzegovina | inop | SBN | | | |
| All ac | Sky Cana | Dominican Republic | active | CEY | Y2 | in svc | 1 |
| All ac | Sky Cana | Dominican Republic | active | SNA | RD | in svc | |
| All ac | Sky Express | Greece | active | SEH | GQ | in svc | 10 |
| All ac | Sky One | | inop | | | | |
| All ac | Sky One | | active | FSO | | | |
| All ac | Sky Prim Air | Moldova | active | KPM | | | |
| All ac | Sky Prime | Saudi Arabia | active | SPD | | | |
| All ac | Sky Vision Airlines | Egypt | active | SVI | | in svc | 2 |
| All ac | SkyBird Airlines | Netherlands | active | SPL | | | |
| All ac | Skybus | United States | inop | SKB | SX | | |
| All ac | SkyExpress | Russian Federation | inop | SXR | XW | | |
| All ac | Skymark Airlines | Japan | active | SKY | BC | | |
| All ac | Skyservice Airlines | Canada | inop | SSVa | 5G | | |
| All ac | Skytraders | Australia | active | SND | | in svc | 3 |
| All ac | SkyUp Airlines | Ukraine | active | SQP | LQ | | |
| All ac | SkyUp Europe | Malta | active | SEU | U5 | in svc | 2 |
| All ac | SkyWest Airlines | Australia | inop | OZW | XR | | |
| All ac | Skywings | Switzerland | inop | GSW | ND | | |
| All ac | Skywings Asia Airlines | Cambodia | inop | SWM | ZA | | |
| All ac | Slovak Government Flying Service | Slovakia | active | SSG | | in svc | 2 |
| All ac | Small Planet Airlines Cambodia | Cambodia | inop | LKH | C8 | | |
| All ac | Small Planet Airlines Germany | Germany | inop | LLX | 5P | | |
| All ac | Small Planet Airlines Lithuania | Lithuania | inop | LLC | S5 | | |
| All ac | Small Planet Airlines Poland | Poland | inop | LLP | P7 | | |
| All ac | Smartavia | Russian Federation | active | AUL | 5N | in svc | 2 |
| All ac | SmartLynx Airlines | Latvia | active | ART | 6Y | in svc | 3 |
| All ac | SmartLynx Estonia | Estonia | active | MYX | HN | in svc | 1 |
| All ac | SmartLynx Malta | Malta | active | LYX | 2N | in svc | 3 |
| All ac | Smartwings | Czechia | active | TVS. | QS | in svc | |
| All ac | SN Brussels | Belgium | inop | BEL | SN | | |
| All ac | Snowbird Airlines | Finland | inop | SBW | | | |
| All ac | Sobelair | Belgium | inop | SLR | Q7 | | |
| All ac | Solaris Airlines | Russian Federation | inop | VBG | | | |
| All ac | Solomon Airlines | Solomon | active | SOL | IE | in svc | 2 |
| All ac | SonAir | Angola | inop | SOR | | | |
| All ac | Sorens Aero | Italy | inop | SSE | | | |
| All ac | South African Airways | South Africa | active | SAA | SA | in svc | 6 |
| All ac | Southwind Airlines | Türkiye | active | STW | 2S | in svc | 3 |
| All ac | Spanair | Spain | inop | JKK | JK | | |
| All ac | SpiceJet | India | active | SEJ | SG | | 2 |
| All ac | Spirit Airlines | United States | active | NKS | NK | in svc | 184 |
| All ac | Spring Airlines | China | active | CQH | 9C | in svc | 125 |
| All ac | Spring Airlines Japan | Japan | active | SJO | IJ | | |
| All ac | Springjet | Malta | active | HFY | K5 | | |
| All ac | Sprintair | Poland | inop | SRN | HS | | |
| All ac | SriLankan Airlines | Sri Lanka | active | ALK | UL | in svc | 12 |
| All ac | Star Airlines | France | inop | SEU | SE | | |
| All ac | Star Airways | Albania | inop | STB | 4S | | |
| All ac | Star East Airlines | Romania | active | SEK | | in svc | 1 |
| All ac | Star Europe | France | inop | SEU | | | |
| All ac | Star XL German Airlines | Germany | inop | GXL | | | |
| All ac | Starflyer | Japan | active | SFJ | 7G | in svc | 11 |
| All ac | Starlux Airlines | Taiwan | active | SJX | JX | in svc | 13 |
| All ac | State of Kuwait | Kuwait | active | KAC | KU | in svc | 2 |
| All ac | Stellar Airways | Congo | inop | S1 | | | |
| All ac | STP Airways | Sao Tome And Principe | active | STP | 8F | | |
| All ac | Strategic Airlines | France | inop | STZ | | | |
| All ac | Strategic Airlines Lux | Luxembourg | inop | STU | SH | | |
| All ac | Su Airlines | Ganbia | inop | 52J | | | |
| All ac | Sudan Airways | Sudan | active | SUD | SD | in svc | 1 |
| All ac | Sudan Government | Sudan | active | SUD | SD | | |
| All ac | Sun Air | Sudan | inop | SNR | | | |
| All ac | Sunclass Airlines | Denmark | active | VKG | DK | in svc | 11 |
| All ac | Sundair | Germany | active | SDR | SR | in svc | 8 |
| All ac | SunExpress | Türkiye | active | SXS | XQ | in svc | |
| All ac | SunExpress Deutschland | Germany | inop | SXD | XG | | |
| All ac | Sunlight Express Airways | Philippines | active | | | | |
| All ac | Sunrise Airways | Haiti | active | KSZ | S6 | | |
| All ac | Sunwings Airlines | Canada | active | SWG | WG | | |
| All ac | Super Air Jet | Indonesia | active | SJV | IU | in svc | 60 |
| All ac | Surinam Airways | Surinam | active | SLM | PY | in svc | |
| All ac | SW Business Aviation | Azerbaijan | active | ESW | | in svc | 1 |
| All ac | Swiftair | Spain | active | SWT | WT | | 1 |
| All ac | Swiss | Switzerland | active | SWR | SR | in svc | 23 |
| All ac | Swissair | Switzerland | inop | SWR | SR | | |
| All ac | Syphax Airlines | Egypt | inop | SYA | FS | | |
| All ac | Syrian Arab Airlines | Syrian | active | SYR | RB | in svc | 4 |
| All ac | Taban Airlines | Iran | active | TBN | HH | in svc | 1 |
| All ac | TACA International Airlines | El Salvador | inop | TAI | TA | | |
| All ac | TACA Peru | Peru | inop | TPU | T0 | | |
| All ac | TACV Cabo Verde Airlines | Capo Verde | active | TCV | VR | | |
| All ac | TAG Aviation Asia | Hong Kong | active | TBJ | | in svc | 1 |
| All ac | TAG Aviation San Marino | San Marino | active | TAG | | in svc | 1 |
| All ac | Tag Aviation UK | United Kingdom | inop | PJS | PP | | |
| All ac | Tailwind Airlines | Türkiye | active | TWI | TI | | |
| All ac | TAM | Brazil | inop | TAM | JJ | | |
| All ac | TAME | Ecuador | inop | TAE | EQ | | |
| All ac | Tandem-Aero | Moldova | inop | DTM | | | |
| All ac | TAP - Portugal Airlines | Portugal | active | TAP | TP | in svc | 58 |
| All ac | Tarco Air | Sudan | inop | TRQ | 3T | | |
| All ac | Tarom | Romania | active | ROT | RO | in svc | 1 |
| All ac | TATA SIA Airways | Singapore | active | VTI | UK | | |
| All ac | Tatarstan Airlines | Russian Federation | inop | TAK | U9 | | |
| All ac | Ted | United States | inop | UAL | UA | | |
| All ac | Tehran Airlines | Iran | active | THR | | | |
| All ac | Teleport | Japan | active | | | in svc | |
| All ac | Terra Avia | Moldova | active | TVR | | | |
| All ac | TFC Kaeufer | Germany | inop | TFC | | | |
| All ac | Thai AirAsia | Thailand | active | AIQ | FD | in svc | 54 |
| All ac | Thai Airways International | Thailand | active | THA | TG | in svc | 20 |
| All ac | Thai Smile | Thailand | active | THD | WE | | |
| All ac | Thai Vietjet Air | Thailand | active | TVJ | VZ | in svc | 17 |
| All ac | Thomas Cook Airlines (UK) | United Kingdom | inop | TCX | MT | | |
| All ac | Thomas Cook Airlines Balearics | Spain | inop | CTB | H5 | | |
| All ac | Thomas Cook Belgium | Belgium | inop | TCW | HQ | | |
| All ac | Thomas Cook Condor | Germany | inop | CGF | DE | | |
| All ac | Thomas Cook Scandinavia | Denmark | inop | VKG | DK | | |
| All ac | Thomsen Airways | United Kingdom | inop | TOM | BY | | |
| All ac | Thomsenfly | United Kingdom | inop | TOM | BY | | |
| All ac | Tianjin Airlines | China | active | GCR | GS | in svc | 42 |
| All ac | Tibet Airlines | China | active | TBA | TV | in svc | 38 |
| All ac | Tiger Airways | Singapore | inop | TGW | TR | | |
| All ac | Tiger Airways Australia | Australia | inop | TGG | TT | | |
| All ac | Tiger Mandala | Indonesia | inop | MDL | RI | | |
| All ac | Tigerair | Singapore | inop | TGW | TR | | |
| All ac | Tigerair Australia | Australia | inop | TGG | TT | | |
| All ac | Tigerair Philippines - Go Air | Philippines | inop | SRQ | DG | | |
| All ac | Tigerair Taiwan | Taiwan | active | TTW | IT | in svc | 15 |
| All ac | Titan Airways | United Kingdom | active | AWC | ZT | in svc | 5 |
| All ac | Titan Airways Malta | Malta | active | TMT | | in svc | |
| All ac | TOR Air | Sweden | inop | OAI | | | |
| All ac | Trade Air | Croatia | active | TDR | C3 | in svc | 5 |
| All ac | Trans Alsace | France | inop | TAS | | | |
| All ac | TransAer International Airlines | Brazil | inop | TNI | | | |
| All ac | Transaero Airlines | Russian Federation | inop | TSO | UN | | |
| All ac | TransAfrican Airways | Kenya | inop | TSF | | | |
| All ac | Transair Sweden | Sweden | inop | TWE | TB | | |
| All ac | TransAsia Airways | Taiwan | inop | TNA | GE | | |
| All ac | Transavia | Netherlands | active | TRA | HV | in svc | 3 |
| All ac | Transavia France | France | active | TVF | TO | | 2 |
| All ac | Translift Airways | Ireland | inop | TLA | T7 | | |
| All ac | Transmed Airlines | Egypt | inop | TMD | MT | | |
| All ac | Transmeredian Airlines | United States | inop | TRZ | T9 | | |
| All ac | TransNusa | Indonesia | active | TNU | 8B | in svc | 4 |
| All ac | Travel Service | Czechia | active | TVS | QS | | |
| All ac | Travel Service Slovakia | Slovakia | active | TVQ | 6D | | |
| All ac | TUI Airlines Belgium | Belgium | active | JAF | TB | | 3 |
| All ac | TUI Airlines Netherlands | Netherlands | active | TFL | OR | | |
| All ac | TUI Airways | United Kingdom | active | TOM | BY | | |
| All ac | TUI fly Deutschland | Germany | active | TUI | X3 | | |
| All ac | TUI fly Netherlands | Netherlands | inop | TFL | OR | | |
| All ac | TUI fly Nordic | Sweden | active | BLX | 6B | | |
| All ac | Tuninter | Tunesia | inop | TUI | UG | | |
| All ac | Tunisair | Tunesia | active | TAR | TU | in svc | 23 |
| All ac | Turkey Government | Türkiye | active | HVK | | in svc | 2 |
| All ac | Turkish Airlines | Türkiye | active | THY | TK | in svc | 125 |
| All ac | Turkuaz Airlines | Türkiye | inop | TRK | | | |
| All ac | TUS Airways | Cyprus | active | CYF | U8 | in svc | 4 |
| All ac | Twinjet Aircraft | United Kingdom | inop | TWJ | | | |
| All ac | Tyrolean Jet Service | Austria | inop | TJS | | | |
| All ac | U-Airlines | Thailand | inop | ULG | YL | | |
| All ac | Ukrainain Mediterranean Airlines (UM Air) | Ukraine | inop | UKM | UF | | |
| All ac | Ukraine Air Enterprise | Ukraine | inop | UKN | | in svc | 1 |
| All ac | Ultra Air | Ukraine | active | ULS | O0 | | |
| All ac | UNI Airways | Taiwan | active | UIA | B7 | | |
| All ac | United Airlines | United States | active | UAL | UA | in svc | 176 |
| All ac | United Eagle Airlines | China | inop | UEA | EU | | |
| All ac | United Nations Humanitarian Air Service | | active | UNO | | in svc | |
| All ac | United Nigeria | Nigeria | active | NUA | | in svc | 1 |
| All ac | Universal Airlines | United States | inop | UTQ | UV | | |
| All ac | Universal Entertainment | | active | | | | |
| All ac | UPS | United States | active | UPS | 5X | | |
| All ac | UR Airlines | Iraq | active | UBD | UD | in svc | 2 |
| All ac | Ural Airlines | Russian Federation | active | SVR | U6 | in svc | 50 |
| All ac | US Airways | United States | inop | AWE | US | | |
| All ac | USA 3000 Airlines | United States | inop | GWY | U5 | | |
| All ac | UTAir | Russian Federation | inop | UTA | UT | | |
| All ac | Uzbekistan Airlines | Uzbekistan | active | UZB | HY | in svc | 19 |
| All ac | Uzbekistan Express | Uzbekistan | active | UZB | HY | in svc | 4 |
| All ac | V Air | Taiwan | inop | VAX | ZV | | |
| All ac | Valetta Airlines | Malta | active | HOT | | | |
| All ac | Valuair | Singapore | inop | VLU | VF | | |
| All ac | Vanilla Air | Japan | inop | VNL | JW | | |
| All ac | Varesh Airlines | Iran | active | VRH | | | |
| All ac | VBird | Netherlands | inop | VBA | 5D | | |
| All ac | VECA Airlines | El Salvador | active | VAR | VU | | |
| All ac | Venezuelan Goverment | Venezuela | active | 50 | | | |
| All ac | Vertir Airlines | Armenia | inop | VRZ | | | |
| All ac | VIA Airways | Bulgaria | inop | VAW | | | |
| All ac | Victoria Airlines | United Kingdom | inop | ENV | | | |
| All ac | Vietjet Air | Viet Nam | active | VJC | VJ | in svc | 81 |
| All ac | Vietnam Airlines | Viet Nam | active | HVN | VN | in svc | 62 |
| All ac | Vietravel Airlines | Viet Nam | active | VAG | VU | in svc | 3 |
| All ac | Viking Hellas | Greece | inop | VKH | VQ | | |
| All ac | VIM Airlines | Russian Federation | inop | MOV | NN | | |
| All ac | Virgin America | United States | inop | VRD | VX | | |
| All ac | Virgin Atlantic Airways | United Kingdom | inop | VIRa | VS | | |
| All ac | Virgin Australia Airlines | Australia | active | VOZ | VA | in svc | 6 |
| All ac | Virgin Australia Regional Airlines (Skywest) | Australia | active | OZW | XR | in svc | 1 |
| All ac | Virgin Express | United Kingdom | inop | VEX | TV | | |
| All ac | Virgin Express Ireland | Ireland | inop | VEI | VK | | |
| All ac | Virgin Nigeria | Nigeria | inop | VGN | VK | | |
| All ac | Virgin Sun Airlines | United Kingdom | inop | VIR | VS | | |
| All ac | Vista Georgia | Georgia | inop | AJD | | | |
| All ac | Vistara | India | active | VTI | UK | in svc | 62 |
| All ac | Viva Air Colombia | Colombia | active | VVC | VH | | |
| All ac | Viva Air Peru | Peru | active | VPE | VV | | |
| All ac | VivaAerobus | Mexico | active | VIV | VB | in svc | 78 |
| All ac | VivaColombia | Colombia | rebranded | VVC | VH | | |
| All ac | Vladivostok Avia | Russian Federation | inop | VLK | XF | | |
| All ac | VLM Airlines | Belgium | inop | TCW | HQ | | |
| All ac | Volar Airlines | Spain | inop | LTE | XO | | |
| All ac | Volare Airlines | Italy | inop | VLE | VA | | |
| All ac | Volareweb | Italy | inop | VLE | VE | | |
| All ac | Volaris | Mexico | active | VOI | Y4 | in svc | 99 |
| All ac | Volaris Costa Rica | Costa Rica | active | VOC | Q6 | in svc | 6 |
| All ac | Volaris El Salvador | El Salvador | active | VOS | N3 | in svc | 2 |
| All ac | Volkswagen | Germany | active | WGT | | | |
| All ac | Volotea Airlines | Spain | active | VOE | V7 | in svc | 43 |
| All ac | Voyage Air | Bulgaria | active | VRG | VO | | |
| All ac | Vuela Airlines | El Salvador | inop | VAR | VU | | |
| All ac | Vueling | Spain | active | VLG | VY | in svc | 128 |
| All ac | Wamos Air | Spain | inop | PLM | EB | | |
| All ac | Wataniya Airways | Kuwait | inop | WAN | Q9 | | |
| All ac | WDL | Germany | inop | WDL | | | |
| All ac | West Air | China | active | CHB | PN | | |
| All ac | White | Portugal | active | WHT | WI | | |
| All ac | Whitejets | Brazil | inop | WTJ | | | |
| All ac | Wind Jet | Italy | inop | JET | IV | | |
| All ac | Wind Rose Airlines | Türkiye | active | WRC | 7W | in svc | 1 |
| All ac | Windavia | Portugal | inop | WHT | WI | | |
| All ac | Wings Air | Indonesia | inop | WON | IW | | |
| All ac | Wings of Lebanon | Lebanon | activeinop | WLB | W7 | | |
| All ac | WIZZ Air | Hungary | active | WZZ | W6 | in svc | 76 |
| All ac | WIZZ Air Abu Dhabi | United Arab Emirates | active | WAZ | 5W | in svc | 13 |
| All ac | WIZZ Air Bulgaria | Bulgaria | inop | WVL | | | |
| All ac | Wizz Air Malta | Malta | active | WMT | W4 | in svc | 72 |
| All ac | Wizz Air UK | United Kingdom | active | WUK | W9 | in svc | 16 |
| All ac | WIZZ Air Ukraine | Ukraine | inop | WAU | WU | | |
| All ac | World Atlantic Airlines | United States | active | WAL | WL | in svc | 1 |
| All ac | WOW Air | Iceland | inop | WOW | WW | | |
| All ac | Xiamen Airlines | China | active | CXA | MF | in svc | 15 |
| All ac | Xinlong Air | China | inop | QDA. | QW | | |
| All ac | XL Airways | United Kingdom | inop | XLA | JN | | |
| All ac | XL Airways France | France | inop | XLF | SE | | |
| All ac | XL Airways Germany | Germany | inop | GXL | X4 | | |
| All ac | Yalian Business Jet | China | inop | UNA | | | |
| All ac | Yamal Airlines | Russian Federation | active | LLM | YC | in svc | 8 |
| All ac | Yamato Transport | Japan | active | YHD | | in svc | 2 |
| All ac | Yan Air | Ukraine | active | ANR | YE | | |
| All ac | Yemenia | Yemen | active | IYE | IY | in svc | 6 |
| All ac | YES Airways | Poland | inop | YAP | | | |
| All ac | Yestours | Portugal | inop | YSS | | | |
| All ac | Yunnan Hongtu Airlines | China | inop | HTU | A6 | | |
| All ac | Zafer Aviation | | active | HMZ | | | 1 |
| All ac | Zagros Airlines | Iran | active | IZG | ZV | in svc | 5 |
| All ac | ZagrosJet Airlines | Iraq | active | GZQ | Z4 | | |
| All ac | Zest Air | Philippines | inop | EZD | Z2 | | |
| All ac | Zhejiang Airlines | China | active | CCA | CA | | |
| All ac | Zhejiang Loong Airlines (Loong Air) | China | active | CDC | GJ | | |
| All ac | Zoom Airlines | Canada | inop | OOM | Z4 | | |
