You can join AAdvantage, American Airlines' frequent flyer program, for free by creating an account online or at the airport
AAdvantage membership costs nothing to join. You sign up through the American Airlines website, provide your name and email address, and receive a membership number when ready. You can also join in person at an American Airlines ticket counter or gate agent desk. Once you have a number, you start earning miles on every American Airlines flight and on purchases made through partner merchants — even before your first flight.
The program is open to anyone 18 or older with a valid email address. You do not need to have booked a flight yet. Many people join before their first trip so their miles count from the start.
Key Takeaways
- Join AAdvantage for free at aa.com, through the American Airlines app, or at any airport ticket counter in under five minutes.
- You earn miles on every American Airlines flight, partner airline flights, hotel stays, car rentals, and credit card purchases once you have a membership number.
- Miles never expire as long as you have some account activity within a 24-month period, such as earning or redeeming miles.
- An AAdvantage credit card accelerates mile earning and unlocks benefits like checked bag waivers and priority boarding on American Airlines flights.
Joining Online Through the American Airlines Website
Go to aa.com and look for the "Join AAdvantage" link, usually located in the top navigation menu or footer. Click it to open the enrollment form. You will be asked for your first and last name, date of birth, email address, home country, and a password of your choice.
After you submit the form, American Airlines sends a confirmation email to the address you provided. Open that email and click the confirmation link. Your account is then active and you receive your membership number. Write down or save this number — you will need it when you book flights or want to link your account to a credit card.
The entire process takes about three to five minutes. You can start using your number right away, even if you have not yet booked a flight.
Joining Through the American Airlines Mobile App
read the American Airlines app from the Apple App Store or Google Play Store. Open the app and tap "Sign Up" or "Create Account." Enter the same information you would on the website: name, date of birth, email, and password. The app will send you a confirmation email to verify your address.
Once you confirm your email, your membership number appears in the app when ready. You can use the app to book flights, track your miles balance, and manage your account from your phone. Many people find the app faster than the website because your information is saved once you log in.
Joining at the Airport
If you are at the airport and have not yet joined, you can sign up at any American Airlines ticket counter or gate agent desk. Tell the agent you want to join AAdvantage. They will ask for your name, date of birth, and email address, then issue you a membership number on the spot. You can use this number for your current flight when ready.
The agent will also give you a temporary membership card or direct you to confirm your account online later. Joining at the airport takes longer than online — usually 10 to 15 minutes — so if you have time before your flight, joining online beforehand is faster.
Linking Your Credit Card to Your AAdvantage Account
Once you have your membership number, you can explore for an AAdvantage credit card to earn miles faster. American Airlines offers several versions of the card through Citi, each with different earning rates and benefits. You explore for the card through Citi's website or through aa.com.
When you are approved for the card, link it to your AAdvantage account so miles earned on purchases post to your account automatically. You do this by logging into your AAdvantage account, going to the "Credit Card" or "Linked Accounts" section, and entering your card number. After linking, every purchase on the card earns miles at the rate the card offers — typically 1 to 2 miles per dollar spent, depending on the card.
You do not need a credit card to earn miles in AAdvantage. You earn miles on flights and partner purchases without one. The card straightforward accelerates earning if you use it for everyday spending.
How Miles Earn and How Long They Last
You earn one mile per dollar spent on American Airlines flights. Partner airlines, hotels, car rental companies, and retail partners offer different earning rates — sometimes 1 mile per dollar, sometimes more. You can see the current earning rates for each partner on the AAdvantage website under "Earn Miles."
Miles do not expire as long as your account has activity within any 24-month period. Activity includes earning miles, redeeming miles, or making a purchase through an AAdvantage partner. If your account sits inactive for 24 months or longer, American Airlines may close it and forfeit your miles. To keep your account active, you can earn miles on a flight, make a partner purchase, or even transfer miles to another member — all of which count as activity.
What You Can Do With Your Miles Once You Join
The main use for AAdvantage miles is to book flights on American Airlines and partner airlines without paying cash. You can also use miles to upgrade a paid ticket to a higher cabin, pay for baggage fees, or book hotel stays and car rentals through AAdvantage partners. Some members use miles to cover taxes and fees on award flights, which saves cash on top of the ticket itself.
Miles have different values depending on how you use them. A flight that costs 25,000 miles might be worth $300 in cash value, or it might be worth $250 depending on the route and cabin. Redeeming for flights on less popular routes or during off-peak times usually gives you better value per mile.
Frequently Asked Questions
Do I have to pay to join AAdvantage?
No. Joining AAdvantage is free. There are no annual membership fees. You only pay if you choose to explore for an AAdvantage credit card, which has its own annual fee that varies by card type.
Can I join if I do not live in the United States?
Yes. AAdvantage is open to residents of most countries. When you join online, you select your home country from a dropdown menu. Some countries have restrictions, so if your country does not appear in the list, contact American Airlines customer service to ask about membership options.
What happens to my miles if I close my account?
If you close your AAdvantage account, your miles are forfeited and cannot be recovered. American Airlines does not transfer miles to another person or refund them as cash. Keep your account open even if you are not flying regularly — as long as you have activity every 24 months, your miles remain yours.
Can I earn miles on flights booked by someone else?
Only if the flight is booked in your name. The name on the ticket must match your AAdvantage membership name exactly. If someone else books a ticket for you, ask them to use your name and provide your membership number so the miles post to your account.
How do I find my membership number if I forgot it?
Log into your AAdvantage account at aa.com or in the app. Your membership number appears on the account dashboard. You can also call American Airlines customer service at 800-433-7300 and provide your name and date of birth, and they will give you your number.