When to buy miles for your loyalty program

It’s typically not a great idea to buy miles from the airline for a simple reason: purchased miles cost more than they’re worth when redeemed. Most airlines charge around three cents per mile on average. Considering you can transfer miles to an airline at a 1:1 ratio with an eligible credit card, or earn miles at better rates directly with cobranded cards, buying miles directly usually isn’t worth it.

But on some rare occasions, it can make sense to buy miles. Here are the most common reasons you might choose to purchase miles.

Best times to buy airline miles

There are three instances where it could make sense to purchase airline miles.

Discounts and promos

Occasionally, some loyalty programs will run promotions or sales for buying miles. Depending on the loyalty program, you could find miles selling at a price closer to what they’re worth when redeemed.

It might make sense to buy miles using Avianca LifeMiles, for example, as this program is known for offering frequent sales.

Topping off your miles

It could be worth buying extra miles if you’re just short the few miles needed for a redemption. Of course, you will won’t get a great value for those last few miles, but your eventual redemption of accrued miles could make the trade-off worth it.

To keep your account from expiring

Many loyalty programs require you to earn or spend miles within a certain time period in order to keep your account open and avoid forfeiting your accrued miles.

Consider purchasing miles if you have a cache of miles on a loyalty program account you don’t use very often, and you don’t have an eligible credit card that can earn miles to that account. Buying miles will count toward mile accrual requirements and keep your account open.

Other considerations when buying miles

Here are a few things to keep in mind when you’re purchasing miles:

• Minimum purchase requirements.
  Most loyalty programs only sell miles in certain quantities, such as 500 or 2,000 miles.
• Values change all the time.
  The value of miles on a loyalty program change fairly frequently — often for the worse. While the 10,000 additional miles you purchased might have given you enough for a reward flight at the time of purchase, waiting even just a few months can put that reward flight out of reach. Check out our latest miles valuations for more information.
• Miles are best earned with credit cards.
  Just about every loyalty program out there allows you to earn miles with an eligible credit card or to transfer credit card points into loyalty miles.

Compare airline credit cards

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Name	Product	Foreign transaction fee	Welcome offer	Rewards	Filter values
Chase Sapphire Preferred® Card		None	80,000 points after spending $4,000 in the first 3 months, a value of up to $1,000 through Chase Ultimate Rewards. Plus up to $50 statement credit towards groceries	5x points on Lyft, 2x points on up to $1,000 on groceries until April 30, 2021, 2x points on travel and dining and 1x points on all other purchases		Earn a signup bonus worth $1,000 plus up to $50 statement credit towards groceries with this popular travel card.	Apply now View details	Compare	loading Fetching your data...
Chase Sapphire Reserve®		None	60,000 points after spending $4,000 in the first 3 months, a value of up to $900 through Chase Ultimate Rewards.	10x points on Lyft rides, 3x points on dining and travel after earning your $300 travel credit and 1x points on all other purchases		Earn a huge signup bonus worth $900 toward travel when redeemed through Chase Ultimate Rewards with Chase’s premier card.	Apply now View details	Compare	loading Fetching your data...
Delta SkyMiles® Gold American Express Card		None	Earn 40,000 bonus miles after you spend $1,000 in purchases on your new card in your first 3 months, plus up to $50 back in statement credits for eligible purchases at US restaurants in the same timeframe	2x miles on Delta purchases, restaurants and at US supermarkets and 1x miles on all other purchases		With a welcome offer worth up to $560, up to 2x miles on select purchases, and assorted Delta perks, this is a strong choice for Delta fans. Terms apply, see rates & fees	Apply now View details	Compare	loading Fetching your data...

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Bottom line

Provided it’s part of a larger strategy, buying airline miles can help you inch toward your next big redemption. Just make sure it’s not your primary method of earning miles — the cost of purchasing miles will far outweigh your ultimate redemption value.

Compare rewards cards to find a card that lets you best earn points or miles on your favorite loyalty brand.

Frequently asked questions

• How much are airline miles worth?

  Airline miles are worth a variable amount depending on the airline, type of flight and other similar factors.

• How many miles does it take to get a free flight?

  The miles you need for a flight depend on the airline and the cost of the flight.

• What airline miles are most valuable?

  Alaska Airlines has one of the most valuable miles on average at 1.8 cents per mile according to our latest calculations. Compare our mileage valuations for more information.