In order to improve your travel experience, Alaska Airlines provides a number of seat upgrade choices. Premium Class is one of the upgrades; it offers more legroom, early boarding, and free food and beverages. Upgrades to First Class offer even more comfort, including gourmet meals, priority boarding, and bigger seats. Upgrading is possible when making the reservation, when checking in, or with Mileage Plan miles. For the greatest selection, it is advised to book early as availability varies based on the flight and tier status. For additional details regarding Alaska upgrade seats, please contact the consolidation desk at +1 (800) 865-1848.