Showing 394 registered airlines with a combined fleet of 1,328 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Island Aviation and Travel | IOM | 0 |
| Islandair Jersey | IAJ | 0 |
| Isles of Scilly Skybus | IOS | 0 |
| Itapemirim Transportes Aéreos | IPM / 8I | 0 |
| J C Bamford (Excavators) | JCB | 2 |
| JDAviation | JDA | 5 |
| Jeppesen UK | JPN | 0 |
| Jet Concierge Club | JCO | 8 |
| Jet2.com | EXS / LS | 102 |
| Jetrider International | JRI | 0 |