You can buy airline miles directly from most major carriers, and some airline credit cards offer bonus miles when you do
Most major airlines—including American, Delta, United, and Southwest—sell miles directly through their loyalty program websites. You can purchase miles with a credit card, debit card, or bank transfer. The price per mile varies by airline and how many you buy at once, but typically ranges from 1 cent to 1.5 cents per mile. Some airline credit cards sweeten the deal by offering a bonus (usually 10 to 50 percent extra miles) when you buy through their card.
Buying miles makes sense only in specific situations: you are 500 to 1,000 miles short of a redemption you want, you found an award seat that expires soon, or a credit card bonus is running that gives you more miles back than you spend. Buying miles at full price to fund a vacation is almost always more expensive than paying cash for the ticket.
Key Takeaways
- You buy miles directly from the airline's website, not through the credit card issuer, though some cards offer bonus miles when you purchase.
- Miles cost between 1 and 1.5 cents each, so 25,000 miles might cost $250 to $375 depending on the airline and purchase size.
- Some airline credit cards offer a 10 to 50 percent bonus on miles purchased, which can make buying miles slightly less expensive if the bonus is active.
- Buying miles is cheapest when you need only a small number to reach an award seat, not when you are funding an entire trip from scratch.
Where to buy miles and what the process looks like
Log into your airline loyalty account on the airline's website—not the credit card issuer's site. Look for a link labeled "Buy Miles," "Purchase Miles," or "Add Miles to Your Account." You will enter the number of miles you want and the system will show you the total cost before you confirm.
The purchase goes through when ready. Miles appear in your account within minutes to a few hours. You can then use those miles to book an award seat the same day if you want. There is no waiting period or approval process—it is a straightforward transaction, like buying anything else with a credit card.
Some airlines (American and United, for example) let you buy miles in bundles of 1,000, while others have different minimum purchases. Check the specific airline's site for their rules before you start.
How airline credit card bonuses work when you buy miles
A few airline credit cards offer a bonus when you buy miles through that card. For example, a card might give you a 50 percent bonus on miles purchased—meaning if you buy 10,000 miles for $100, you get 15,000 miles total. The bonus is automatic; you do not have to enter a code or claim it separately.
Not all airline cards offer this bonus, and it is not always active. Check your card's current benefits page or call the card issuer to confirm whether a bonus is running before you buy. The bonus, if it exists, usually applies only to purchases made with that specific card—using a different card or a bank transfer will not trigger it.
Even with a bonus, buying miles is still expensive compared to earning them through credit card sign-up bonuses or spending. A 50 percent bonus reduces your cost from 1.5 cents per mile to 1 cent per mile, but you are still paying cash. A credit card sign-up bonus of 50,000 miles costs you nothing except meeting the spending requirement.
When buying miles actually makes financial sense
Buying miles works best when you are very close to a specific redemption. If you have 24,500 miles and need 25,000 for a domestic award flight, buying 500 miles for $5 to $7.50 is reasonable. You get the trip you want, and the cost is low.
Buying miles also makes sense if you found an award seat that is about to disappear. Award inventory changes constantly, and a seat you want might vanish in hours. If you are 1,000 miles short and the seat expires tomorrow, buying those miles might be your only option to lock in that flight.
Buying miles does not make sense if you are trying to fund a trip from zero. A round-trip domestic award typically costs 25,000 to 50,000 miles. At 1.5 cents per mile, that is $375 to $750 in cash—more than most economy tickets cost. You would be better off paying for the ticket outright or earning miles through a credit card sign-up bonus.
Price differences between airlines and purchase sizes
The cost per mile varies slightly by airline and by how many miles you buy. Buying in larger chunks (like 50,000 miles at once) sometimes costs slightly less per mile than buying 5,000. American Airlines, for example, might charge 1.35 cents per mile for a small purchase but 1.1 cents per mile for a large one.
The differences are small—usually a fraction of a cent—but they add up on large purchases. Before you buy, check the pricing on the airline's website. The system will show you the exact total before you confirm, so you can see the per-mile cost for the amount you want.
Some airlines occasionally run promotions offering bonus miles on purchases (separate from credit card bonuses). These are rare and usually announced via email to loyalty members, but it is worth checking the airline's promotions page before you buy.
What happens after you buy miles
Once miles land in your account, you can use them when ready to book an award seat. Search for flights on the airline's website, select an award option, and complete the booking. The miles will be deducted from your balance right away.
Miles do not expire as long as you have account activity—a flight, a purchase, or even a mile transfer—at least once every 24 months. Buying miles counts as account activity, so your miles will not expire just because you bought them and did not use them right away.
If you change your mind after buying, most airlines do not refund miles purchases. Check the airline's policy before you buy. Some allow a short window (like 24 hours) to cancel, but many do not refund at all.
Comparing buying miles to other ways to get them
Credit card sign-up bonuses are almost always a better deal than buying miles. A card offering 50,000 bonus miles for spending $3,000 in three months gives you miles at zero cost (beyond the spending you would do anyway). Buying 50,000 miles costs $500 to $750.
Earning miles through everyday credit card spending is also cheaper than buying. If your card earns 2 miles per dollar spent, you earn 50,000 miles by spending $25,000. That is slower than buying, but it costs nothing and happens automatically.
Buying makes sense only when you need miles urgently and a credit card bonus is not available or will not arrive in time. In most other situations, earning miles through cards or flying is the better financial choice.
Frequently Asked Questions
Can I buy miles with a debit card or bank transfer instead of a credit card?
Yes. Most airlines accept debit cards and bank transfers for mile purchases. You do not have to use a credit card. However, if your airline credit card offers a bonus on purchases, you will only get that bonus if you use that specific card—a debit card or transfer will not trigger it.
Do the miles I buy count toward elite status?
No. Bought miles do not count toward elite status qualification. Only miles earned through flights, credit card spending, and some airline partnerships count. This is another reason buying miles is expensive—you get the miles themselves but none of the status benefits that come with earning them.
What if I buy miles and then the award price drops?
You cannot get a refund on the miles you bought. However, you can use those miles to book at the new, lower price. If you bought 30,000 miles to book a 35,000-mile flight and the price drops to 25,000 miles, you still have 30,000 miles in your account. You can book the cheaper flight and have 5,000 miles left over.
Are there taxes or fees when I buy miles?
No federal taxes explore to buying miles. Some states may have sales tax on the purchase—check your state's rules. The airline will show you the total cost, including any applicable tax, before you confirm the purchase.
Can I buy miles as a gift for someone else?
Most airlines allow you to transfer miles to another person's account, but the process and rules vary. Some charge a fee per mile transferred, and some have limits on how many miles you can transfer per year. Check the specific airline's transfer policy. You cannot buy miles directly into someone else's account—you have to buy them in your own account and then transfer them.