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- Delta miles are easy to earn by flying, with co-branded credit cards, or by transferring Amex points.
- You can use Delta miles for flights on Delta or its partners, including Air France and KLM.
- The best deals are often through Delta’s award sales, and your miles will never expire.
- Read Insider’s guide to the best Delta credit cards.
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Delta is currently the world’s second-largest airline, and if you live in a hub city like Atlanta, New York, or Seattle, it may be your carrier of choice. Because read more ⇒