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When you're looking for a travel credit card, there are a few key things you'll want. The first one is a card with no foreign transaction fee. This is a fee charged by the credit card issuer when they have to convert your money from one currency to another. It usually comes out to about two to three percent of your purchase. But many better travel rewards credit cards don't charge this fee, so look for one of them when you apply. You'll also want a solid rewards program. This can be worth paying an annual fee for, so keep in mind that you don't want to rule out a card just because it charges a fee. Often the perks are so valuable, it is well worth paying that yearly fee. The best travel card is one that offers a signup bonus that will be worth a free round-trip plane ticket anywhere in the United States, maybe even with a companion pass.