United is a member of the Star Alliance, the largest airline alliance in the world. That means members of United’s frequent flyer program, MileagePlus, can earn and redeem miles not only on United flights, but also on more than two dozen other Star Alliance member airlines. Why it’s worth shopping around United doesn’t add “fuel…

Andy Shuman writes for NerdWallet. Email: travel@nerdwallet.com.

The article How to Save Miles by Flying United With Other Airlines’ Miles originally appeared on NerdWallet.

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