Air Canada is the flag carrier and the largest airline of Canada, by size and passengers carried. Air Canada is headquartered in the borough of Saint-Laurent in the city of Montreal. The airline, founded in 1937, provides scheduled and charter air transport for passengers and cargo to 222 destinations worldwide. It operates major hubs at Montréal–Trudeau, Toronto–Pearson and Vancouver. Air Canada is a founding member of the Star Alliance.
Canada's national airline originated from the Canadian federal government's 1936 creation of Trans-Canada Air Lines (TCA), which began operating its first transcontinental flight routes in 1938. In 1965, TCA was renamed Air Canada following government approval. After the deregulation of the Canadian airline market in the 1980s, the airline was privatized in 1988. On 4 January 2000, Air Canada took over its largest rival, Canadian Airlines. In 2003, the airline filed for bankruptcy protection and in the following year emerged and reorganized under the holding company ACE Aviation Holdings. In 2019, Air Canada flew 51.5Â million passengers. In October 2021, the Government of Canada acquired 6.4% of Air Canada in return for financial support to mitigate the impacts from the COVID-19 pandemic.