American Airlines Check In +1 - 866 - 551 - 1186

Get ready to fly with ease on American Airlines! You can check in as early as 48 hours before takeoff using their website or mobile app—or 24 hours in advance if your trip involves the U.S. Want to do it the old-fashioned way? Head to the airport and use a kiosk or visit the check-in desk. You'll be able to select your seat, add baggage, and grab your boarding pass. Just be sure to arrive at the airport no less than 3 hours before departure to avoid any last-minute hassles.