Earn MQDs on hotel stays and rental cars when you book through Delta by the end of September

Editor’s note: This is a recurring post, regularly updated with new information and offers. For the last time this year, Delta Air Lines is offering Delta SkyMiles members another path to earn Medallion Qualification Dollars toward elite status with its Stays and Cars promotion. Specifically, you can earn 1 MQD per base dollar spent on …
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