| 1 | O2 | OLT Express Sp z.o.o | ICAO: JEA, Callsign: Jeta, Ceased Operations in July 2012. Name changed from Jet Air Spolka z.o.o. in February 2012. | PL | AVCODES |
| 2 | O2 | Oceanic Airlines Inc. | ICAO: GIO, Designator O2 recalled by IATA. Name changed from Guinee Paramount Airlines S.A. | GUI | AVCODES |
| 3 | O2 | Jet Air Spolka z.o.o. | ICAO: JEA, Callsign: Jeta, Name changed to OLT Express Sp z.o.o | PL | AVCODES |
| 4 | O2 | Hopscotch Air, Inc. | ICAO: HPK, Callsign: Hopscotch Air, | USA | AVCODES |
