You can cancel your ticket free of charge within 24 hours of booking it. Additionally, if you cancel your flight after the 24 hour booking window, you will also be charged a cancellation fee. However, Copa Airlines Cancellation Policy says if you book up to 7 days before your flight is scheduled to depart, you can cancel your ticket and receive a full refund. If the passenger checks in within these 24 hours, he will not be able to take advantage of the Copa Airlines 24-hour cancellation policy.