| 1 | FXI | Flugfelag Islands ehf d/b/a Air Iceland | IATA: NY, Callsign: Faxi, IATA Prefix: 882, Name changed to Flugfelag Islands ehf d/b/a Air Iceland Connect. | IS | AVCODES |
| 2 | FXI | Flugfelag Islands ehf d/b/a Air Iceland Connect | IATA: NY, Callsign: Faxi, IATA Prefix: 882, Merged into Icelandair w.e.f. 15 March 2021. Name changed from Flugfelag Islands ehf d/b/a Air Iceland. | IS | AVCODES |
| 3 | FXI | Air Iceland | IATA: NY | | ICAO1 |
| 4 | FXIC | FLX INC | | | SCAC4 |
| 5 | FXIM | FOX INTERMODAL | | | SCAC4 |
| 6 | FXIT | FRIEDMANS EXPRESS INC | | | SCAC3 |
