American Airlines' cancellation policy for international flights varies based on the fare type and route. If you’ve purchased a refundable ticket, you can cancel your flight at any time before departure and receive a full refund. For non-refundable international tickets, you can cancel and receive a travel credit for future use, though a cancellation fee may apply depending on the destination. Some international routes may have specific cancellation rules, so it’s crucial to check the fare details during booking. Additionally, if American Airlines cancels or significantly alters your flight schedule, you are entitled to a full refund regardless of the ticket type. You can cancel or modify your booking by visiting the "My Trips" section on the American Airlines website. Always review the fine print when booking international travel to avoid unnecessary fees.