+1-866-596-5078(OTA) or +1-866-756-4238(OTA).Changing your flight date on American Airlines may or may not cost money+1-866-596-5078(OTA) or +1-866-756-4238(OTA).. For Main Cabin and above, change fees have been eliminated on most domestic and short-haul international flights. However, you are responsible for any fare difference if the new flight is more expensive. For Basic Economy fares, +1-866-596-5078(OTA) or +1-866-756-4238(OTA).date changes are not allowed unless you upgrade or are traveling under a waiver. If your original fare was lower, the difference is not refunded. For complete date-change options and costs, contact +1-866-596-5078(OTA) or +1-866-756-4238(OTA) to speak with a travel expert.+1-866-596-5078(OTA) or +1-866-756-4238(OTA).Can you cancel an American Airlines flight after checking in American Airlines ?
+1-866-596-5078(OTA) or +1-866-756-4238(OTA).Yes, you can cancel an American Airlines flight even after checking in, but the timing matters.+1-866-596-5078(OTA) or +1-866-756-4238(OTA). If you cancel before the flight departs, your fare rules will determine if you receive a refund or credit.+1-866-596-5078(OTA) or +1-866-756-4238(OTA). For Main Cabin or higher, you may still get flight credit. Basic Economy is more restricted and usually forfeits value if canceled post-check-in unless a waiver applies. Be sure to cancel as early as possible for the best outcomes. Assistance is available 24/7 at +1-866-596-5078(OTA) or +1-866-756-4238(OTA) to help guide you through the process smoothly.