Showing 394 registered airlines with a combined fleet of 1,330 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Transcorp Airways | TCP | 0 |
| Tropair Airservices | TSV | 0 |
| TUI Airways | TOM / BY | 70 |
| Twinjet Aircraft Sales | TWJ | 0 |
| UK HEMS | HLE | 15 |
| UK International Airlines | UKI | 0 |
| UK Royal/HRH Duke of York | LPD | 0 |
| United Kingdom Civil Aviation Authority | CFU | 0 |
| United Kingdom Civil Aviation Authority | EXM | 0 |
| United Kingdom Civil Aviation Authority | SDS | 0 |