Le compagnie aeree più utilizzate tra Toronto e Ottawa sono generalmente
Türk Hava Yolları,
Qantas Airways,
Air Canada,
Eva Air,
United Airlines,
Delta Air Lines,
Lufthansa,
China Eastern Airlines,
Westjet,
Korean Air,
Air Canada Jazz,
Philippine Airlines,
Scandinavian Airlines,
Avianca,
Air Transat,
China Southern Airlines,
Lan Airlines,
Egyptair,
JSC Aviaprad,
Emirates,
Porter Airlines,
Asiana Airlines,
SATA International,
Aeromexico,
Cathay Pacific,
TAP Portugal,
LOT Polish Airlines,
Virgin Atlantic,
Aer Lingus,
KLM,
Austrian,
Xiamen Airlines
aziende.