Las compañías aéreas más utilizadas entre Ottawa y Toronto son generalmente
Türk Hava Yolları,
Air Transat,
Lufthansa,
Air France,
Egyptair,
JSC Aviaprad,
Porter Airlines,
Cathay Pacific,
Asiana Airlines,
Aer Lingus,
SATA International,
Lan Airlines,
TAP Portugal,
Swiss,
Virgin Atlantic,
Air Canada,
Xiamen Airlines,
Avianca,
Austrian,
Qantas Airways,
Delta Air Lines,
Korean Air,
United Airlines,
LOT Polish Airlines,
Aeromexico,
Air Ecuador Airecu,
Westjet,
Philippine Airlines,
Air Canada Jazz,
China Southern Airlines,
Emirates,
Scandinavian Airlines
compañías.