| 1 | 6D | P.T. Pelita Air Service | ICAO: PAS, Callsign: Pelita, IATA Prefix: 019, IATA designator changed to 6D. Designator 6D* reinstated by IATA | RI | AVCODES |
| 2 | 6D | P.T. Pelita Air Service | ICAO: PAS, Callsign: Pelita, IATA Prefix: 019, IATA designator changed from 6D*. Designator 6D* reinstated by IATA | RI | AVCODES |
| 3 | 6D | Air Dominicana S.A. | ICAO: RDO, Callsign: Air Dom, | DOM | AVCODES |
| 4 | 6D | Royal Daisy Airlines | ICAO: KDR, Callsign: Darlines, | EAU | AVCODES |
| 5 | 6D | Travel Service,a.s. organizacna zlozka Slovensko (Organizational unit Slovakia) | ICAO: TVQ, Callsign: Slovaktravel, Name changed to Travel Service Slovensko s.r.o. | SK | AVCODES |
| 6 | 6D | Travel Service Slovensko s.r.o. | ICAO: TVQ, Callsign: Slovaktravel, Name changed to Smartwings Slovensko s.r.o. w.e.f. 10 December 2018. Name changed from Travel Service,a.s. organizacna zlozka Slovensko (Organizational unit Slovakia) | SK | AVCODES |
| 7 | 6D | Smartwings Slovensko s.r.o. | ICAO: TVQ, Callsign: Slovaktravel, Name changed from Travel Service Slovensko s.r.o. w.e.f. 10 December 2018. Name changed from Travel Service,a.s. organizacna zlozka Slovensko (Organizational unit Slovakia) | SK | AVCODES |
