Calculator: Should You Book a Flight With Cash Or Miles?

At NerdWallet, we strive to help you make financial decisions with confidence. To do this, many or all of the products featured here are from our partners. However, this doesn’t influence our evaluations. Our opinions are our own.

Let’s say you’re booking a last-minute flight on Delta and you have the option of either:

  • Paying $450 cash
  • Paying 30,000 Delta miles + $40 in fees.

Which is the better deal?

To help answer this common conundrum, we created a calculator that pairs our airline mile valuations with your own booking options. Enter the airline award program, cash fare, equivalent award fare and any fees associated with your award fare, and the calculator will explain the rest.

Keep in mind that our valuations, while based on real-world data, are only estimates for how much award miles are worth.

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