https://www.transfermarkt.com/-flight-cancelling-what-is-the-penalty-for-cancelling-a-flight-on-american-airlines-help-support-/thread/forum/696/thread_id/26451/page/1#anchor_27225 https://www.transfermarkt.com/-flight-cancelling-what-is-the-penalty-for-cancelling-a-flight-on-american-airlines-help-support-/thread/forum/696/thread_id/26451/page/1#anchor_27225 https://www.transfermarkt.com/-flight-cancelling-what-is-the-penalty-for-cancelling-a-flight-on-american-airlines-help-support-/thread/forum/696/thread_id/26451/page/1#anchor_27225