When Do Alaska Airlines Mileage Plan Miles Expire?

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Alaska Airlines will close Mileage Plan accounts and delete any remaining miles after 24 months of account inactivity, which can be extended by earning or redeeming at least one Alaska mile.

If your account is deleted, you can reinstate it within a year for a $75 fee.

Ways to Extend Your Alaska Miles

There are several ways to reset the expiration date on your miles:

Comparison of U.S. Airlines

Below are the mileage expiration policies for every U.S. airline.

Airlines Expiration Policy
Alaska Airlines Alaska 24 months
American Airlines American 18 months
Delta Air Lines Delta Never
Frontier Frontier 180 days
Hawaiian Airlines logo Hawaiian Never
JetBlue JetBlue Never
Southwest Airlines Southwest Never
Spirit Airlines Logo Spirit 12 months
United Airlines logo United Never