| Airline Name | ICAO | IATA | Callsign | Country |
| J-Air | JLJ | XM | J-AIR | Japan |
| Jade Cargo International | JAE | JI | JADE CARGO | China |
| JAL Express | JEX | JC | Japan | |
| JALWays | JAZ | JO | Japan | |
| Japan Air Charter | JAZ | JO | Japan | |
| Japan Air Commuter | JAC | 3X | COMMUTER | Japan |
| Japan Air System | JAS | JD | Japan | |
| Japan Airlines | JAL | JL | JAPANAIR | Japan |
| Japan Airlines Domestic | JAL | JL | Japan | |
| Japan Asia Airways | JAA | EG | Japan | |
| Japan Transocean Air | JTA | NU | Japan | |
| Japanese Government | Japan | |||
| JAT Airways | JAT | JU | JAT | Serbia |
| JAT Yugoslav Airlines | JAT | JU | JAT | Yugoslavia |
| Jatayu Airlines | JTY | VJ | Indonesia | |
| Jazeera Airways | JZR | J9 | JAZEERA | Kuwait |
| Jeju Air | JJA | 7C | JEJUAIR | Korea, Republic Of |
| Jerdan | United Kingdom | |||
| Jersey European Airways | JEA | JY | United Kingdom | |
| Jes Air | JES | Bulgaria | ||
| Jet 2000 | SJT | Sweden | ||
| Jet 24 Inc | United States | |||
| Jet Airways | JAI | 9W | JET AIRWAYS | India |
| Jet Alsace | JLS | JET ALSACE | France | |
| Jet America Airlines | United States | |||
| Jet Aspen Air Lines | JTX | United States | ||
| Jet Associates International | United States | |||
| Jet Aviation | United States | |||
| Jet Aviation Business Jets | PJS | PP | Switzerland | |
| Jet East International | JED | United States | ||
| Jet Express | United States | |||
| Jet Fleet | United States | |||
| Jet Link Holland | Netherlands | |||
| Jet-Time | JTM | South Africa | ||
| Jet2 | EXS | LS | CHANNEX | United Kingdom |
| Jet4You | JFU | 8J | ARGAN | Morocco |
| Jetair – TUI Airlines Belgium | TUB | Belgium | ||
| Jetairfly | JAF | JF | BEAUTY | Belgium |
| Jetall | JTL | Canada | ||
| JetBlue Airways | JBU | B6 | JETBLUE | United States |
| Jetconnect | ONZ | New Zealand | ||
| Jetcraft Aviation | JCC | Australia | ||
| Jetflite | JEF | Finland | ||
| JetGreen Airways | Ireland | |||
| Jetlease Air Cargo | United States | |||
| JetLink Express | JLX | J0 | KEN JET | Kenya |
| JetLite | RSH | S2 | India | |
| JetMagic | JMG | GX | Ireland | |
| Jetran Air | MDJ | WZ | AIR ROMANIA | Romania |
| Jetsgo | JGO | SG | Canada | |
| Jetstar Airways | JST | JQ | JETSTAR | Australia |
| Jetstar Asia | 3K | Singapore | ||
| Jetstream International Airlines | JIA | United States | ||
| Jett8 Airlines Cargo | JEC | JX | Singapore | |
| Jettime | JTG | JETTIME | Denmark | |
| JetX Airlines | JXX | GX | JETBIRD | Iceland |
| JHM Airlines Cargo | JHM | Costa Rica | ||
| JMA Holdings LLC | United States | |||
| JMC Airlines | JMC | MT | United Kingdom | |
| Jordan Aviation | JAV | R5 | JORDAN AVIATION | Jordan |
| Jordanian Government | Jordan | |||
| Juneyao Airlines | DKH | China | ||
| JUST Japan Universal System Transport | JST | Japan |