|About booking on aircanada.com|
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Air Canada fare prices and their availability on aircanada.com are accessed through a live flight booking system.
Therefore, while you are viewing a particular price for a specific flight, it could be that another person is actually in the process of booking a seat of the same type for that same flight.
Dependent on seat availability at that point, and because airlines limit the number of seats on each plane that can be sold in any given fare bracket, this may have been the last seat at that price and, therefore, the fare you are subsequently offered may be higher than the fare you originally viewed.