Making adjustments to your Air Canada flight reservation isn't a "ordeal by fire" - at least not if you've bought your tickets through Air Canada. The airline has a staff of specialists that are available 24 hours a day, seven days a week to answer any questions you may have, such as How to Change Air Canada Flight. If you change a flight on Air Canada before the purchase date, you can do it for free. For further information, see the following: If you alter your Air Canada airline ticket after 24 hours or if you fail to modify your Air Canada flight within 24 hours of purchasing, you will be charged a change fee based on the route and pricing type you choose. Make a flight change All passengers on Air Canada are entitled to make modifications to their travel in accordance with the revised arrangements. Certain costs may be waived if you notify the airline ahead of time. Air Canada's 24-hour flight change policy allows you to correct mistakes for free for a period of 24 hours. If you alter my Air Canada flight at the airport or at an Air Canada ticketing office, the airline has the right to adjust the administrative costs. Check Also: American Airlines Change Flight Policy