Alaska Airlines Online Check-In Guide (2026)
Alaska Airlines online check-in opens 24 hours before departure and closes 40 minutes before domestic flights (60 minutes for international). You can check in via alaskaair.com or the Alaska app, where you can also verify international documents up to 72 hours in advance.
Check-In Timing
| Airline | Alaska Airlines (AS) |
|---|---|
| Check-In Opens | 24 hours before departure |
| Check-In Closes | 40 minutes before domestic flights, 60 minutes before international flights |
| Check-In URL | https://www.alaskaair.com/checkin |
| Mobile App | Alaska Airlines app (iOS, Android) |
| Mobile Boarding Pass | Yes |
| Airport Kiosk | Yes |
Step-by-Step Check-In Guide
1. Visit alaskaair.com or open the Alaska Airlines app. 2. Enter your last name and 6-digit confirmation code. 3. Add and pay for any checked bags. 4. Change or upgrade your seat assignment if desired. 5. Save your boarding pass to your mobile wallet or print it. 6. If checking bags, use the self-tag station at the airport.
Documents Needed
Booking confirmation code (6 digits), passport for international flights, and any required visas or travel documents. Minors traveling internationally without both parents may need a signed letter of consent.
Seat Selection
Seat selection and changes are available during online check-in. You can also upgrade to Premium or First Class if available. Saver fares may have limited seat selection options.
International Check-In Rules
International travel documents must be verified before check-in. You can upload and verify documents in the Alaska app up to 72 hours before your flight. Passports and APIS information are required.
Group Check-In
Groups of 10 or more traveling together can get advance seat assignments and unlimited free name changes up to three days prior to departure. Group check-in can be managed online or via the group desk.
Troubleshooting
1. 'Unable to verify international documents' - You may need to verify them in person at the airport. 2. 'Check-in unavailable' - Ensure you are within the 24-hour window or check if your flight is operated by a partner airline. 3. 'Seat selection locked' - Saver fare passengers may have seats assigned at the gate if none are available during check-in.