When it comes to maximizing your Alaska Airlines miles, understanding their expiration policy is crucial. Many travelers wonder, alaska airlines do miles expire? The answer is yes, but with specific conditions. Alaska Airlines miles typically expire after 24 months of inactivity in your account. To keep your miles from vanishing, engage in any account activity—whether earning, redeeming, or transferring miles. Keeping track of your account status and regularly using your miles will ensure they remain valid, allowing you to enjoy those dream flights and upgrades. Stay proactive to make the most of your hard-earned rewards!