https://community.smartsheet.com/profile/204920/AA_Cancel [AA~24hr~Cancellation] Does American have a 24-Hour cancellation policy? Does American have a 24-Hour cancellation policy?Yes, American Airlines offers a 24-hour risk-free cancellation policy on (1) 844 604 2944 (24/7 Quick cancellation) with full refunds within 24 hours of booking, provided your departure is at least two days away