Flight delayed or cancelled on American Airlines? You're not alone—severe weather and system-wide disruptions are stranding travelers across the U.S. this week. Before you waste hours in an airport line, learn exactly how American Airlines missed flight rebooking works in 2026: when you qualify for free rebooking, how the "flat tire rule" can save your ticket, and which fare types risk full forfeiture if you're marked a no-show. Need help now? Speak to a travel expert at +1-8