Last verified: April 2026
Do Alaska Airlines Mileage Plan Miles Expire?
No. Alaska Airlines eliminated expiration from its Mileage Plan program in April 2023. Before that change, miles expired after 24 months of account inactivity — a policy that caught many occasional Alaska flyers off guard. Since April 2023, Alaska Mileage Plan miles never expire regardless of how long your account sits dormant. You do not need to make a qualifying transaction to keep them alive, and there is no inactivity window to monitor.
This was a significant and permanent policy shift. If you have been making small purchases or flying Alaska specifically to prevent expiration, you no longer need to. Your miles are safe regardless of account activity. For the full guide on air miles expiration, read our run-through here.
What Changed in April 2023?
Prior to April 2023, Alaska Mileage Plan operated a 24-month inactivity expiration policy — one of the more common expiry windows in the industry. Miles would be permanently forfeited if no qualifying earn or redemption activity occurred within a 24-month period. Alaska removed this policy entirely in early 2023 as part of a broader shift among US carriers toward no-expiry programs, following Delta, Southwest, and JetBlue which had already eliminated expiration years earlier. Today, all four major US airline loyalty programs — Delta SkyMiles, Southwest Rapid Rewards, JetBlue TrueBlue, and Alaska Mileage Plan — have no expiration date on miles.
Can You Still Lose Alaska Mileage Plan Miles?
While miles no longer expire due to inactivity, there are still scenarios where your Alaska miles could be at risk. If Alaska closes your account for violating the program's terms and conditions — including suspicious activity, fraudulent redemptions, or selling miles — your balance can be forfeited. Account security is also a consideration: if your Mileage Plan account is hacked and miles are redeemed fraudulently before you notice, recovery is not always guaranteed. Use a strong, unique password and enable two-factor authentication on your Alaska account.
How Much Are Alaska Mileage Plan Miles Worth?
Alaska miles are consistently rated among the most valuable in the industry, primarily because of Alaska's strong network of airline partners. As a oneworld member, Alaska miles can be redeemed on British Airways, Japan Airlines, Cathay Pacific, Finnair, and dozens of other partners — often at rates that significantly outperform what you'd get flying Alaska itself. For premium cabin redemptions on Japan Airlines or Cathay Pacific, Alaska miles regularly deliver 1.5 to 2.0 cents of value per mile. For standard domestic redemptions, expect closer to 1.2 to 1.5 cents per mile.
If you have a large Alaska miles balance you are not planning to use for international travel, selling it for cash through The Miles Market is a straightforward alternative. The value you receive depends on your account balance and current demand — accounts with 80,000 or more miles qualify for our maximum payout rate.
Should You Sell Alaska Miles Even Though They Don't Expire?
The fact that Alaska miles no longer expire removes the urgency argument — but it does not remove the case for selling entirely. Miles still lose value over time through program devaluations. Alaska has adjusted its award rates multiple times in recent years, and while the program remains strong, holding a large balance you have no realistic plan to use means its value is slowly eroding year by year. If you have accumulated Alaska miles through a credit card bonus or past travel that no longer matches your flying patterns, converting that balance to cash today captures its current market value before any future devaluation.
