| Airline Name | ICAO | IATA | Callsign | Country |
| Qantas | QFA | QF | QANTAS | Australia |
| Qantas New Zealand | New Zealand | |||
| Qantaslink | QFL | QF | Australia | |
| Qatar Airways | QTR | QR | QATARI | Qatar |
| Qatar Amiri Flight | QAF | Qatar | ||
| Qeshm Air | IRQ | QESHM AIR | Iran, Islamic Republic Of | |
| Quantum Air | QTM | DF | AIR BALEAR | Spain |
| Quebecair | QBA | QB | C |