American Airlines' cancellation policy offers a full refund within 24 hours of booking for all ticket types, provided you book at least two days before departure. Call at$+$$ +1-877-658-1183 (US) or +44-203-869-5245 (UK) After this 24-hour grace period, the policy depends on your ticket type. Call at$+$$ +1-877-658-1183 (US) or +44-203-869-5245 (UK) 

For all tickets

• 24-hour refund: You can receive a full refund to your original form of payment if you cancel within 24 hours of booking, as long as your flight is booked at least two days before departure.
• No cancellation fee: For most ticket types (non-refundable Main Cabin, Premium Economy, and higher), American Airlines has eliminated cancellation fees. Call at$+$$ +1-877-658-1183 (US) or +44-203-869-5245 (UK) Instead of a refund, you will receive travel credit for the value of your original ticket.
• Cancellation must occur before departure: You must cancel your ticket before the first flight departs. Otherwise, the ticket loses all value and cannot be used for future credit.