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