When Do Delta SkyMiles Expire?

Delta SkyMiles never expire as long as the account is open and in good standing, but you should frequently use your SkyMiles because Delta frequently devalues their points without notice.

However, Delta reserved the right to close your account and delete your SkyMiles if:

  • Fraudulent activity occurs.
  • A Member requests an account closure.
  • A Member is deceased.
  • A Member does not respond to repeated communication attempts regarding the status of his/her account.
  • A Member resides in or relocates to a country where membership is prohibited under applicable law.
  • A Member violates the terms of this Membership Guide and Program Rules.

Comparison of U.S. Airlines' Policies

Below are the mileage expiration policies for every major 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 18 months
JetBlue JetBlue Never
Southwest Airlines Southwest Never
Spirit Airlines Logo Spirit 12 months
United Airlines logo United Never