Air Canada is a large airline that operates a dense network of routes across Canada and to the US, with a large number of routes to Asia, the Caribbean and Europe, although many routes to the old continent have been taken over by the low cost subsidiary Air Canada Rouge.

The best Air Canada fares are booked on search engines 2-4 months before departure, and are usually not among the cheapest, with occasional sale fares or mistake fares where at least part of the journey is operated by Air Canada, especially on flights from Europe to North America.