The most frequently used airline companies from Calgary to Toronto are generally
Türk Hava Yolları,
China Southern Airlines,
TAP Portugal,
Emirates,
Lufthansa,
Westjet,
Swiss,
Air Canada,
Qantas Airways,
Avianca,
Aer Lingus,
Virgin Atlantic,
KLM,
LOT Polish Airlines,
Kish Airlines,
Austrian,
Scandinavian Airlines,
Aeromexico,
Delta Air Lines,
Air Transat,
Korean Air,
Freedom Airlines,
Egyptair,
Air France,
SATA International
are companies.