Cancel American Airlines Flights
Visit the American Airlines Reservations and Cancellation webpage at www.aa.com. On the homepage, click "Your Trips."
By clicking Cancel Booking, you may choose the trip you want to cancel.
American Airlines will then need confirmation from you that you want to cancel your reservation.
When you click "confirm," your reservation will be cancelled.
If there are any money left over after any cancellation charges are deducted, you will then be given a voucher.
Save the email you receive after cancelling a paid ticket since it contains the 13-digit ticket number and six-digit record that will be needed for rebooking.