What are the check-in procedures for American Airlines flights?

American Airlines offers several convenient check-in procedures for passengers. Generally, travelers can check in online, via the mobile app, at self-service kiosks, or at the airport check-in counters. Online check-in typically opens 24 hours prior to the scheduled departure time and allows passengers to view their flight details, select or modify seats, and purchase upgrades or additional services. For those using the mobile app, the process is similarly user-friendly, providing a seamless way to check in and access boarding passes. At airports, self-service kiosks are available for passengers who prefer to check in in person. These kiosks allow users to print boarding passes and bag tags efficiently. Additionally, passengers can complete their check-in process by visiting an American Airlines service representative at the designated check-in counters. It is also important to note that for international flights, certain travel documents, such as passports or visas, may be required, so travelers should ensure they have all necessary paperwork ready when checking in. For the most up-to-date information and any specific requirements related to a flight, it is advisable for travelers to visit the American Airlines website.