Showing 1,012 registered airlines with a combined fleet of 8,798 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Jettrain Corporation | JTN | 0 |
| Jetways of Iowa | JWY | 0 |
| Jim Hankins Air Service | HKN | 1 |
| Jim Ratliff Air Service | RAS | 0 |
| JM Family Aviation | TQM | 0 |
| Johnson Air | JHN | 0 |
| Johnston Airways | JMJ | 0 |
| JSX | JSX / XE | 44 |
| Justice Prisoner and Alien Transportation System | DOJ | 3 |
| Kaiser Air | KAI | 3 |