Delta axes expiration date for SkyMiles

(Source: CNN)
(Source: CNN)

(CNN) - Delta SkyMiles are now good forever.

The airline says it has gotten rid of expiration dates for the loyalty program.

Under the previous system, SkyMiles expired after two years if customers didn't earn or redeem miles.

In making the change, Delta says it wanted to reward the loyalty of its passengers.

Frequent fliers can typically redeem a free flight after seven or eight domestic round trips.

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