Where to log in to your Allegiant credit card account

Allegiant Air offers a co-branded credit card through Barclays, and you log in through Barclays' online portal, not through Allegiant's main website. Go to barclays.com and select "Log In" at the top right, then choose "Credit Cards" from the menu. Enter your username and password — these are the credentials you created when you first opened the card, not your Allegiant frequent flyer login.

If you have never logged in before, you will need to register for online access. On the Barclays login page, select "Enroll Now" and follow the steps to create a username and password. You will need your card number and the last four digits of your Social Security number to set up your account.

Barclays also offers a mobile app called "Barclays Mobile Banking" available on iOS and Android. You can log in with the same username and password you use on the website.

Key Takeaways

  • Log in at barclays.com, not through Allegiant Air's website, because Barclays is the card issuer.
  • Your login credentials are separate from your Allegiant frequent flyer account, even though the card is co-branded.
  • New cardholders must enroll for online access using their card number and the last four digits of their Social Security number.
  • You can manage your account on the Barclays website or through the Barclays Mobile Banking app on your phone.

What you can do once you are logged in

After logging in, you can view your current balance, recent transactions, and available credit. You can also set up automatic payments, change your password, update your mailing address, and read statements in PDF format. The portal shows your rewards balance and lets you see how many points or miles you have earned toward Allegiant travel credits.

If you need to report a lost or stolen card, contact Barclays customer service directly rather than trying to do it through the online portal. The phone number is on the back of your card.

Resetting a forgotten password

On the Barclays login page, select "Forgot Username or Password?" and enter your card number. Barclays will send a password reset link to the email address on file. Click the link, create a new password, and log in with your username and the new password.

If you do not receive the email within a few minutes, check your spam folder. If you still cannot reset your password, call Barclays customer service at the number on your card — they can verify your identity and help you regain access.

Troubleshooting login problems

If you see an error message when you try to log in, first confirm that you are on barclays.com and not a phishing site. Check the URL in your browser's address bar — it should start with "https://www.barclays.com" and show a lock icon.

If your username or password is not working, make sure Caps Lock is off and that you are entering them exactly as you created them. Barclays accounts are case-sensitive. If you have tried multiple times and still cannot log in, wait 15 minutes before trying again — the system may temporarily lock your account after several failed attempts for security reasons.

If you are using the mobile app and having trouble, try logging out completely, closing the app, and logging back in. You can also try clearing your app cache in your phone's settings and reinstalling the app if the problem continues.

Linking your Allegiant account to your credit card

Your Allegiant Air frequent flyer account and your Barclays credit card account are separate. To earn miles on your card, you need to make sure your Allegiant frequent flyer number is linked to the credit card in Barclays' system. During card signup, you should have provided your Allegiant number, but you can verify or update it by calling Barclays customer service.

Once your Allegiant number is linked, miles will post to your frequent flyer account automatically when you use the card. You can check your miles balance by logging into your Allegiant account on Allegiant's website, not through the Barclays portal.

Contacting Barclays if you need help

Barclays customer service is available by phone at the number printed on the back of your card. They can help with account questions, payment issues, fraud reports, credit limit increases, and other card-related matters. You can also message Barclays through the online portal by selecting "Contact Us" and choosing your issue type.

If you have questions about your Allegiant rewards or frequent flyer account, contact Allegiant Air directly — Barclays handles the card account but does not manage the airline loyalty program.

Frequently Asked Questions

Is my Allegiant frequent flyer login the same as my Barclays credit card login?

No. Your Allegiant frequent flyer account and your Barclays credit card account are separate. You log in to the card account at barclays.com and to your frequent flyer account at allegiantair.com. You will have different usernames and passwords for each.

Can I pay my Allegiant credit card bill through the Allegiant website?

No. You must pay your Barclays credit card bill through barclays.com or by calling Barclays customer service. Allegiant's website does not process card payments.

What should I do if I think someone else is using my account?

Log in to your Barclays account and review your recent transactions. If you see charges you did not make, call Barclays when ready at the number on your card to report fraud. Barclays can freeze your card and investigate unauthorized charges. Do not delay — the sooner you report it, the better your protection.

Can I change my login username after I create it?

Barclays does not allow you to change your username through the online portal. If you want a different username, contact Barclays customer service and they can help you update it.