Air Canada is Canada's largest airline and the largest provider of scheduled passenger services in the Canadian market, the Canada- U.S. transborder market and in the international market to and from Canada.

Air Canada is recognized as the flag carrier and largest airline of Canada, a founding member of the Star Alliance, and a consistent recipient of "Best Diversity Employer" awards in 2026. It is notably the only Four-Star international network carrier in North America, according to Skytrax. The airline is famous for its Aeroplan loyalty program, which is one of the most flexible in the industry, allowing for points to be used across a vast network of 45+ airline partners. While historically criticized for customer service inconsistencies during peak travel seasons, the airline has spent the last several years modernizing its fleet with Boeing 787 Dreamliners and Airbus A220s. It is also well-known for its extensive global reach, connecting Canadian hubs like Toronto, Montreal, and Vancouver directly to more than 180 destinations on six continents, as well as its high-end "Signature Class" which features lie-flat pods and chef-inspired menus.