| 1 | 7S | Region Air Pte. Ltd. | ICAO: RGA, Callsign: Orchid, | SGP | AVCODES |
| 2 | 7S | Arctic Transportation Services | ICAO: RYA, Callsign: Ryan Air, Name changed to Ryan Air Services, Inc. | USA | AVCODES |
| 3 | 7S | Ryan Air Services, Inc. | ICAO: RYA, Callsign: Ryan Air, Name changed to Ryan Air, Inc. Name changed from Arctic Transportation Services | USA | AVCODES |
| 4 | 7S | Airday Srl | ICAO: IAD, Callsign: Airday, IATA designator changed to IM* | I | AVCODES |
| 5 | 7S | C Airjet Airlines | ICAO: SRJ, Callsign: Syrjet, Ceased operations. | SYR | AVCODES |
| 6 | 7S | Ryan Air, Inc. | ICAO: RYA, Callsign: Ryan Air, Name changed from Ryan Services Air, Inc. Name changed from Arctic Transportation Services | USA | AVCODES |
| 7 | 7S | JSC SkyBus Airlines | ICAO: BYK, Callsign: Sumko, Founded in 2008. Designator 7S recalled by IATA. | KZ | AVCODES |
