Alaska Horizon Reservations
If your reservation is not eligible for online changes, please contact the Alaska Airlines reservation call center at 1-800-ALASKAAIR (1-800-252-7522).
How do I reserve seats on Alaska Airlines?
Certain seats are reserved for guests with disabilities. Call Alaska reservations after you've booked your flight to request a seat assignment. Your request must be made at least 24 hours before the scheduled flight.
How far in advance can I book a flight on Alaska Airlines?
If you want to make an advance flight booking on Alaska Airlines, you can only do so 331 days before you travel, at least when paying cash—and when using the Alaska Airlines website or app.