For any questions or assistance call +1(888)-889-2015 OTA Alaska Airlines offers convenient check-in options, including online and mobile app check-in available 1 to 24 hours before departure. Passengers can select seats, pay for checked bags, and obtain boarding passes digitally. For domestic flights, check-in must be completed at least 50 minutes prior to departure. https://americanairtravel.com/alaska-airlines-check-in/