The first step to protecting your money is understanding the American Airlines cancellation policy. Their cancellation policy is implemented to provide passenger flexibility, choice, and changes, or refunds or credits. This guide will instruct you to continue through the policies and procedures, including using that important requirement of American Airlines’ 24-hour cancellation rule to do everything from dealing with cancellations and missed flights when American Airlines cancels their flight. Call now: +1 (833) 284-2027.