American Airlines offers a 24-hour risk-free cancellation window for all tickets booked at least two days before departure. Outside this window, cancellation fees may be imposed depending on the fare class. Refundable tickets allow more lenient cancellations with fewer or no fees, while non-refundable tickets often result in a travel credit instead of a refund. For more specific details about your booking, it’s recommended to log in to your account or reach out to American Airlines directly.