The most frequently used airline companies from Toronto to Ottawa are generally
Türk Hava Yolları,
Delta Air Lines,
Lan Airlines,
Korean Air,
Air Transat,
Egyptair,
JSC Aviaprad,
Asiana Airlines,
SATA International,
Porter Airlines,
Avianca,
China Southern Airlines,
Emirates,
TAP Portugal,
LOT Polish Airlines,
Virgin Atlantic,
Austrian,
Xiamen Airlines,
Qantas Airways,
Aeromexico,
Cathay Pacific,
Aer Lingus,
Lufthansa,
China Eastern Airlines,
KLM,
United Airlines,
Westjet,
Philippine Airlines,
Scandinavian Airlines,
Air Canada Jazz,
Air Canada,
Eva Air
are companies.