Where your United miles come from and how to see them

When you use a United-branded credit card, you earn miles in two places: directly from the card issuer (usually 1 to 4 miles per dollar spent, depending on the card), and separately through United's MileagePlus program when you fly or book through their partners. The miles from your card and the miles from flying both land in the same MileagePlus account — you do not have to do anything to combine them. You can see your total balance by logging into your MileagePlus account on United's website or in their mobile app.

The card issuer deposits miles into your account automatically, usually within one to three billing cycles after a purchase posts. If you do not yet have a MileagePlus account, you will need to create one before you can use the card. You can do this on United's website for free, and you can link it to your credit card account so miles flow in without manual steps.

Key Takeaways

  • Miles from your United credit card deposit automatically into your MileagePlus account within one to three billing cycles after a purchase posts.
  • You must have an active MileagePlus account before the card issuer can send miles to you, and you can create one free on United's website.
  • You can check your mile balance and transaction history by logging into MileagePlus on United's website or mobile app at any time.
  • If miles do not appear after three billing cycles, contact the card issuer's customer service with your card number and the purchase date to investigate.

Setting up your MileagePlus account to receive card miles

Start by going to United's website and selecting "Join MileagePlus" or "Sign In" if you already have an account. You will need a valid email address and a password. During signup, United will ask for your name, date of birth, and mailing address — this information must match what is on your credit card process for the miles to post correctly.

Once your account is active, log in and look for "Account Settings" or "Linked Accounts." You should see an option to link a credit card. Enter your United-branded card number, expiration date, and the last four digits of your Social Security number. United will verify this information against the card issuer's records. After verification (which usually takes a few minutes to a few hours), miles from that card will begin depositing automatically.

If you already had a MileagePlus account before opening the credit card, the miles may link automatically once the card issuer has your account number on file. Check your account settings to confirm the card is linked. If it is not, you can add it manually using the steps above.

Tracking miles as they arrive and checking your balance

Log into your MileagePlus account on United's website or open the United app on your phone. On the home screen, you will see your current mile balance displayed prominently. Below that, you can usually find a "Transaction History" or "Activity" section that shows when miles were added, when they were used, and what earned them (card purchases, flights, partner activity, or promotions).

Each transaction entry will show the date, the number of miles, and the source. Card miles typically appear with a label like "Credit Card Bonus" or the name of the card product. If you earned a sign-up bonus when you opened the card, that will show as a separate transaction, usually posting within one to three months of meeting the spending requirement.

You can also set up email notifications in your account settings so United sends you a message each time miles are added. This is useful if you want to track when card purchases post without logging in repeatedly.

What to do if miles do not appear after three billing cycles

If you have made purchases on your United card but do not see the miles in your MileagePlus account after three full billing cycles, start by confirming that your card and account are linked. Log into your MileagePlus account, go to Account Settings, and verify that your credit card number is listed and shows as "Active" or "Linked." If the card does not appear, link it manually using the steps described above.

If the card is linked but miles still have not posted, contact the credit card issuer's customer service number (printed on the back of your card). Have ready your card number, the dates of the purchases you made, and the dollar amounts. The issuer can see whether the miles were sent to United and when. If they were sent, the delay is on United's side; if they were not sent, the issuer will investigate why the transaction did not trigger a mile deposit.

You can also contact United's MileagePlus customer service directly to report missing miles. They can see your account history and confirm whether miles were received from the card issuer. Provide them with your MileagePlus number, the card number (last four digits), and the transaction dates.

Understanding mile expiration and account activity requirements

MileagePlus miles do not expire as long as your account has activity at least once every 24 months. Activity means earning or redeeming miles — it includes card purchases, flights, transfers from partners, or even promotional mile deposits. If your account goes inactive for 24 months or longer, United may close the account and forfeit the miles.

If you have a United credit card, you are earning miles regularly just by using it, so expiration is unlikely to be a concern. However, if you stop using the card and do not fly United or earn miles any other way, keep that 24-month window in mind. You can also reactivate an inactive account by earning or redeeming miles, which resets the clock.

Redeeming miles for flights and other rewards

Once miles are in your account, you can use them to book flights, upgrade cabin classes, or purchase other rewards through the MileagePlus program. To book a flight, log into your MileagePlus account, select "Book with Miles," and search for your route. United will show you available flights and the mile cost for each. You can also call United's reservations line and book by phone if you prefer.

The number of miles required for a flight varies based on the route, the time of year, and how far in advance you book. United uses a dynamic pricing model, meaning the same flight might cost different amounts in miles on different days. You can also use miles to upgrade an existing ticket, add a companion ticket, or purchase gift cards and other merchandise through their rewards store.

Frequently Asked Questions

How long does it take for sign-up bonus miles to show up?

Sign-up bonuses typically post within one to three months after you meet the spending requirement stated in your card agreement. The exact timing depends on the card issuer and when your billing cycle closes. Check your card's terms or contact the issuer's customer service if the bonus does not appear within that window.

Can I transfer miles from one MileagePlus account to another?

Yes, you can transfer miles between MileagePlus accounts, but there is a fee (usually around $12.50 per 1,000 miles transferred). You can initiate a transfer through your account settings on United's website. Both accounts must be active and in good standing.

What happens to my miles if I close my credit card?

Closing the card does not affect the miles already in your MileagePlus account — they remain there as long as your account stays active. However, you will stop earning miles from that card. You can keep the miles and use them to book flights, or you can earn miles through other United credit cards or by flying.

Do I earn miles on credit card fees like annual fees?

No, annual fees and other charges do not earn miles. Only purchases of goods and services earn miles at the rate stated in your card agreement. Some cards waive the annual fee for the first year, and some offer a statement credit or miles bonus that offsets the fee.

Can I see my miles balance without logging into the website?

Yes, you can check your balance in the United mobile app, which is available for iPhone and Android. You can also call United's MileagePlus customer service line and speak to a representative who can tell you your balance over the phone.