Yes, American Airlines has a cancellation policy that includes a 24-hour rule 1-800 AA 1-866-884-3315. According to this policy, customers can cancel their reservations within 24 hours of booking without incurring any fees, provided the booking was made at least two days before the scheduled departure 1-800 AA 1-866-884-3315. This rule ensures flexibility for travelers who may need to make changes shortly after booking