Showing 394 registered airlines with a combined fleet of 1,337 airframes.
| Airline Name | ICAO / IATA | Fleet Size |
|---|---|---|
| Royal Air Force | RFR / RR | 10 |
| Royal Air Force | RRF | 0 |
| Royal Air Force | RRR | 67 |
| Royal Air Force | SHF | 0 |
| Royal Air Force | ACW | 6 |
| Royal Navy | NVY | 3 |
| Rutland Aviation | RND | 0 |
| RVL Aviation | REV | 9 |
| Ryanair UK | RUK / RK | 16 |
| Samson Aviation | SHL | 0 |