You can buy American Airlines miles directly from the airline, or earn them faster by opening an airline credit card and meeting the spending requirement

American Airlines sells miles through its AAdvantage program, and you can purchase them outright at a set price per mile. The cost varies—typically between 1 and 2 cents per mile—and American often runs promotions that lower the per-mile price. However, the fastest way to accumulate miles is through an American Airlines credit card, which awards a large bonus after you spend a set amount in the first few months. For most people, the credit card route gets you more miles for less money than buying them directly.

This guide covers both methods: buying miles straight from American, and using a credit card to earn them as part of your regular spending. The choice depends on how many miles you need, how quickly you need them, and whether you want to use the card for ongoing purchases.

Key Takeaways

  • American Airlines credit cards offer sign-up bonuses of 50,000 to 75,000 miles, which typically costs less per mile than buying them directly from the airline.
  • You must meet a minimum spending requirement—usually $2,500 to $5,000 in the first three months—to receive the sign-up bonus.
  • Buying miles directly from American works if you need a small number of additional miles, but the per-mile cost is usually higher than earning them through a card.
  • American Airlines credit cards also earn miles on every purchase you make after the sign-up bonus, plus perks like checked bag fees and priority boarding.

Earning miles through an American Airlines credit card

An American Airlines credit card gives you a large bonus after you meet the spending requirement, then continues to earn miles on every dollar you spend. The current cards include the AAdvantage Platinum Select, AAdvantage Gold, and AAdvantage Business Platinum, each with different sign-up bonuses and annual fees.

The sign-up bonus is where most of the value sits. A typical offer is 50,000 miles after you spend $2,500 in the first three months, or 75,000 miles after you spend $5,000. At current direct-purchase rates, 50,000 miles would cost you $500 to $1,000 if you bought them from American—so the credit card bonus is usually the better deal, even after accounting for the annual fee.

After you earn the sign-up bonus, the card continues to earn miles at a base rate—usually 1 mile per dollar spent on most purchases, and 2 miles per dollar on American Airlines purchases and dining. If you use the card regularly, those ongoing miles add up. The card also includes perks like a free checked bag on American flights, priority boarding, and sometimes a companion certificate after you spend a certain amount in a year.

How to meet the spending requirement

The spending requirement is the amount you must charge to the card within a set timeframe—usually three months—to receive the sign-up bonus. For example, if the offer is 50,000 miles after $2,500 in spending, you need to put $2,500 on the card by the three-month important date.

Only purchases count toward the requirement. Balance transfers, cash advances, and fees do not. If you do not normally spend that much in three months, you can accelerate spending by paying bills, buying gift cards, or making planned purchases you were going to make anyway. Some people also use the card to pay for travel, groceries, or other regular expenses to hit the threshold faster.

The important date is firm. Once the three-month window closes, you either have the miles or you do not. Check your card's terms for the exact date the requirement period ends, and track your spending to make sure you hit the target.

Buying miles directly from American Airlines

If you already have an American Airlines credit card or do not want to open one, you can buy miles directly from the airline. Log into your AAdvantage account on the American Airlines website, go to the "Buy Miles" section, and select how many miles you want to purchase.

American sets the price per mile, which fluctuates but typically ranges from 1 to 2 cents per mile. The airline also runs periodic promotions—sometimes 30% or 40% off—that lower the per-mile cost. These promotions are advertised on the American Airlines website and in emails to AAdvantage members, so it pays to wait if you can.

Buying miles directly is useful if you need only a small number of additional miles to book a flight, or if you are close to a redemption and do not want to wait for credit card miles to post. However, the cost per mile is usually higher than what you would pay through a credit card sign-up bonus, so it is not the most economical way to build a large balance.

Understanding the cost per mile

To decide whether to buy miles or earn them through a credit card, compare the cost per mile in each scenario. If a credit card offers 50,000 miles with a $95 annual fee and a $2,500 spending requirement you would meet anyway, your cost is roughly $95 divided by 50,000 miles, or about 0.19 cents per mile. If American is selling miles at 1.5 cents per mile, the credit card is the better deal.

However, if you do not spend $2,500 in three months normally, you have to factor in the cost of accelerating that spending—or the value of the perks the card provides, like a free checked bag. If you fly American regularly, the free checked bag alone might be worth $30 to $50 per year, which reduces your effective cost.

The math changes if American is running a promotion. A 40% discount on miles brings the per-mile cost down significantly, and buying during a promotion might be cheaper than opening a new card. Check the current offer on the American Airlines website before you decide.

What happens after you earn or buy miles

Once the miles post to your AAdvantage account, you can use them to book flights on American Airlines or its partners, or to pay for upgrades, seat selections, and other travel perks. Miles do not expire as long as you have account activity—a flight, a credit card purchase, or even a mile purchase—at least once every 18 months.

The number of miles required for a flight depends on the route and how far in advance you book. A domestic flight might cost 7,500 to 50,000 miles depending on distance and demand. International flights cost more. You can search for award availability on the American Airlines website by selecting "Award Travel" instead of "Book a Flight."

If you have a credit card, you also earn miles on every purchase, which means your balance grows over time even when you are not flying. Some cardholders use this to build miles for a future trip without opening multiple cards or buying miles outright.

Comparing American Airlines cards

American offers several credit cards, each with different benefits and annual fees. The AAdvantage Platinum Select has no annual fee for the first year, then $95 per year, and offers a 50,000-mile sign-up bonus. The AAdvantage Gold costs $99 per year and offers 40,000 miles. The AAdvantage Business Platinum is for business owners and costs $145 per year with a 75,000-mile bonus.

The best card depends on how much you fly and spend. If you fly American frequently, the annual fee is offset by the free checked bag and other perks. If you fly rarely, a no-annual-fee card or the Platinum Select's first-year waiver might be better. Compare the sign-up bonus, annual fee, and ongoing earning rate to see which card fits your situation.

You can hold multiple American Airlines cards at once, though each new card process may affect your credit score temporarily. Some people open a new card every two years to capture the sign-up bonus again, then downgrade or close the old card before the annual fee hits. This strategy requires planning and tracking, but it can be a way to earn miles without paying multiple annual fees.

Frequently Asked Questions

Can I buy miles if I do not have an American Airlines credit card?

Yes. You can buy miles directly from American through your AAdvantage account on the airline's website. You do not need a credit card to purchase miles, though you will need a valid payment method like a debit card or bank account. The per-mile cost is typically higher than earning miles through a credit card sign-up bonus.

How long does it take for miles to post after I meet the spending requirement?

Sign-up bonus miles usually post within one to three billing cycles after you meet the spending requirement. This can take anywhere from a few days to a few weeks depending on when your billing cycle closes and how quickly the card issuer processes the bonus. Check your card's terms for the exact timeline, and contact the issuer if miles do not appear within the stated window.

Do I have to use the miles within a certain time?

American Airlines miles do not expire as long as your account has activity at least once every 18 months. Activity includes taking a flight, making a purchase with your credit card, or buying miles. If your account goes inactive for 18 months, miles may be forfeited. You can reactivate an inactive account by making any may have access to transaction.

What if I do not meet the spending requirement?

If you do not spend the required amount within the timeframe, you do not receive the sign-up bonus. The card will still be open and you can use it to earn miles at the regular rate, but you will have missed the large upfront bonus. Some issuers offer a second chance to meet the requirement, but this is not may provide—check your card's terms.

Can I transfer miles from another airline to American?

Most airline loyalty programs do not allow transfers between different airlines. American Airlines miles can be transferred to other AAdvantage members or used to book flights on American and its partners, but you cannot convert them to another airline's miles. If you have miles in another program, you would need to use them separately or let them sit until you fly that airline.