| 1 | 9L | Colgan Air | ICAO: CJC, Callsign: Colgan, IATA Prefix: 426, Ended flying on 05 September 2012 as part of Pinnacle Airlines Corp.'s restructuring plan. Name changed from Colgan Airways Corp. | USA | AVCODES |
| 2 | 9L | Lineas Aereas Canarias, SA | ICAO: LCN, Callsign: LCN, Merged into Meridiana Air, SA on 01 March 1991. | E | AVCODES |
| 3 | 9L | AirTanker Ltd | ICAO: TOW, Callsign: Towline, ICAO designator changed from FST | GB | AVCODES |
| 4 | 9L | West Link Airways Limited | | WAN | AVCODES |
