Online & Mobile: Online check-in opens 24 hours before your scheduled departure via aa.com or the American Airlines mobile app. Airport Check-In Cutoffs: Domestic US Flights: At least 45 minutes before departure (if checking bags or using counter services). International Flights: At least 60 minutes before departure.

Domestic Flights: Arrive at least 2 hours before scheduled departure. International Flights: Arrive at least 3 hours before scheduled departure.

Most passengers are allowed one free carry-on bag plus one personal item.

Standard Allowance Size & Weight: Up to 62 linear inches (and up to 50 lbs for Main Cabin / Economy. Premium cabins allow up to 70 lbs. Standard Fees (US Domestic & Short-Haul International): 1st Checked Bag: Typically $35 to $40 ($5 to $10 savings if paid online/app prior to arrival). 2nd Checked Bag: Typically $45 to $65.

Main Cabin & Premium Fares: American Airlines does not charge change fees on Main Cabin, Premium Economy, Business, and First Class tickets for domestic and most international flights. If you cancel, you will receive a Trip Credit for future travel. Basic Economy Fares: Basic Economy tickets are non-refundable and generally non-changeable. However, AAdvantage® members may cancel domestic Basic Economy tickets for a partial travel credit fee if cancelled prior to departure. 24-Hour Refund Rule: If you booked your ticket at least 2 days prior to departure directly with American Airlines, you can cancel your booking within 24 hours of purchase for a full refund to your original payment method.