Airlines
Each carrier below has been researched field by field, with the airline’s own wording quoted for every rule it publishes.
National carriers 5
AC Air Canada 4 conflicts TS Air Transat 3 conflicts F8 Flair Airlines 2 conflicts PD Porter Airlines 2 conflicts WS WestJet 3 conflicts Regional and northern carriers 8
3H Air Inuit 1 conflict 4N Air North, Yukon's Airline 3 conflicts MO Calm Air International LP 2 conflicts 5T Canadian North 3 conflicts 9M Central Mountain Air No conflicts found YB Harbour Air 2 conflicts 8P Pacific Coastal Airlines Limited 2 conflicts PB PAL Airlines 2 conflicts AC Air Canada Canada's largest airline, flying domestic, transborder and international routes, including its Rouge and Air Canada Express regional operations. 3H Air Inuit An Inuit-owned carrier flying communities across Nunavik in northern Quebec, with connections to Montreal. 4N Air North, Yukon's Airline Yukon's airline, flying between Whitehorse, northern communities and southern Canadian cities such as Vancouver, Calgary and Edmonton. TS Air Transat A leisure airline flying mainly to Europe, Mexico, the Caribbean and Central America, with some domestic connections. MO Calm Air International LP A Manitoba-based regional carrier flying between Winnipeg, Thompson, Churchill and communities across Nunavut. 5T Canadian North An Inuit-owned carrier flying Nunavut, Nunavik and the Northwest Territories, with gateways to Ottawa, Montreal, Edmonton and Yellowknife. 9M Central Mountain Air A regional carrier flying scheduled routes across northern British Columbia and Alberta. F8 Flair Airlines A low-cost carrier flying domestic routes across Canada and some transborder and sun destinations. YB Harbour Air A British Columbia seaplane operator flying scheduled harbour-to-harbour routes between Vancouver, Victoria, Nanaimo and the Gulf Islands. 8P Pacific Coastal Airlines Limited A British Columbia regional carrier flying from Vancouver's South Terminal to coastal communities such as Bella Bella, Bella Coola, Powell River and Tofino. PB PAL Airlines A Newfoundland and Labrador carrier flying Atlantic Canada, eastern Quebec and northern communities. PD Porter Airlines An Ontario-based carrier flying domestic and transborder routes from Toronto, Ottawa, Montreal and western Canadian cities. WS WestJet Canada's second-largest airline, flying domestic, transborder and international routes, including its Encore regional operation.