Cancelling your American Airlines flight and receiving a refund depends on several factors, such as ticket type and cancellation timing. Refundable tickets allow full refunds, whereas non-refundable tickets might result in a travel credit. If you cancel within 24 hours of booking, you may get a refund. To proceed, log into your account, select ‘My Trips,’ and follow the instructions. Check your eligibility for a refund on the American Airlines website or contact their support team for personalized assistance.