Are you wondering about Alaska Airlines Miles: Expiration Policies Explained? Alaska Airlines has one of the most travel-friendly rewards systems, with miles that never expire as long as your account is active. Unlike many other airlines, Alaska Airlines offers flexibility with no predetermined expiration date, as long as you engage in some type of activity—such as earning or redeeming miles—at least once every 24 months. This blog will go over the major features of Alaska's mileage policy, such as how to stay active through flights, partner services, or using your Alaska Airlines credit card. Understanding these policies will guarantee that your miles are safe and available for future journeys, giving you piece of mind when it comes to incentives.