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The Frontier Airlines World MasterCard® currently offers one of the best sign up bonuses for a tiny minimum spending requirement: you earn 40,000 bonus miles after spending $500 in the first 90 days.

Now the card is offering 0% Intro APR on purchases and balance transfers for the first 12 months. (After that, the card has a variable APR, currently 15.99% or 24.99%, based on credit worthiness)

Zero percent intro APR is extremely rare among miles earning cards.

In general, you shouldn’t use credit cards if you don’t pay off the balance in full each month to avoid interest. In particular, you shouldn’t use rewards cards because they tend to have higher interest rates than other cards.

But if for whatever reason you do have balances on other cards, or you think you might be running balances in the next 12 months, the Frontier card’s offer could come in handy.

The Frontier Airlines World MasterCard® continues to offer up to 10,000 bonus miles (1 mile per $1) on balance transfers in the first 90 days. I’ve never mentioned it before because during the first twelve billing cycles, the 3% fee on balance transfers means you’d basically be “buying” the 10k bonus miles for 3 cents each, which is a terrible price.

But now the math has changed a bit. If you have a balance on one credit card that is charging you interest, and you transfer that balance to the Frontier card and pay it off in the next 12 months, you could come out ahead.

Imagine you have a $10k balance on a card charging you 15% interest. You transfer it to Frontier for a 3% fee and earn 10k miles. Then you pay it off during the first 12 months while there is zero interest on the Frontier card. You’d come out way ahead in terms of interest saved and miles earned.

Hopefully for most of us, this new feature of The Frontier Airlines World MasterCard® is irrelevant because it’s a really, really bad idea to be in the habit of carrying a balance on credit cards.

The reason most of us should get the card is for access to the Incredible Frontier Award Chart. The 40,000 bonus miles are enough for two Standard roundtrips within the United States (including Alaska.) And international destinations are only 15k miles each way. For more info, see Frontier World MasterCard with 40,000 Bonus Miles after Spending $500 Means Two Free Domestic Roundtrips.

Full Offer

The Frontier Airlines World MasterCard®

  • 0% Intro APR on purchases and balance transfers for the first 12 months. After that, a variable APR, currently 15.99% or 24.99% based on credit worthiness
  • Earn 40,000 bonus miles after spending $500 in purchases in the first 90 days
  • Earn up to 10,000 bonus miles on balance transfers (1 mile per $1 transferred) in the first 90 days
  • Earn Double miles on purchases at FlyFrontier.com and 1 mile per $1 on all other purchases
  • No blackout dates! Book any roundtrip award flight on Frontier starting at 20,000 miles (subject to fees/taxes from $5)
  • $69 Annual Fee