| J2 | AHY | 771 | Azerbaijan Airlines |
| J2 | AHC | Cargo Air Company of Azal | |
| J3 | PLR | 325 | Northwestern Air Lease |
| J4 | BFL | Buffalo Airways | |
| J5 | PRL | 127 | Aviaprima Sochi Airlines |
| J5 | EPA | Shenzhen Donghai Airlines | |
| J7 | VJA | ValuJet Airlines | |
| J7 | CVC | 601 | Centre-Avia Airlines |
| J7 | GXY | Galaxy Airlines | |
| J8 | BVT | 801 | Berjaya Air |
| JA | NOS | 583 | Norway Airlines |
| JA | BON | 995 | Air Bosna |
| JB | JBA | 613 | Helijet Airways |
| JC | JEX | JAL Express | |
| JD | JAS | 234 | Japan Air System |
| JF | LAB | 510 | Lab Flying Service |
| JG | AGJ | 616 | Air Greece-Aerodromis |
| JH | NES | 264 | Nordeste-Linhas Aereas Regionais |
| JI | JAE | 189 | Jade Cargo International |
| JJ | TAM | 957 | TAM Linhas Aereas |
| JK | JKK | 680 | Spanair |
| JL | JAL | 131 | Japan Airlines |
| JM | AJM | 201 | Air Jamaica |
| JN | RIA | Rich International Airways | |
| JN | XLA | 812 | Excel Airways |
| JO | ESK | 473 | Eurosky Airlines |
| JO | JAZ | 708 | JAL Ways |
| JP | ADR | 165 | Adria Airways |
| JQ | JQA | 100 | Trans Jamaican Airlines |
| JQ | JST | 041 | Jetstar |
| JR | SER | 078 | Aero California |
| JS | KOR | 120 | Air Koryo |
| JT | RBH | Regal Bahamas International Airways | |
| JT | MDJ | 576 | Jaro International |
| JT | LNI | Lion Airlines | |
| JU | JAT | 115 | Jat Airways |
| JV | BLS | 632 | Bearskin Airlines |
| JW | APW | 404 | Arrow Cargo |
| JX | JES | JES Air | |
| JX | SJI | Sunjet International Airlines | |
| JX | JEC | 693 | Jett8 Airlines Cargo |
| JZ | SKX | 752 | Skyways AB |