Wondering if you can get a full refund after canceling a flight within 24 hours? U.S. regulations allow passengers to cancel most flights for a full refund if done within 24 hours of booking, as long as the flight is booked at least seven days in advance. However, policies vary by airline, and some have exceptions. Always double-check with your airlineās specific terms. Learn more about your rights and how to maximize your flexibility when booking flights!