How do I cancel at Air Canada? Every ticket has a different cancellation policy according to the type of ticket and associated terms and conditions. The 24-hour cancellation policy allows passengers to cancel their booking within 24 hours of reservation to receive a full refund, you can also request cancelation to the customer care agent by calling OTA +1-877-335-8488 (CANADA) (no... https://airnsky.com/blog/how-do-i-cancel-at-air-canada/