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Don’t Have an Account? Contact a Citi customer service representative by phone, mail or live chat and receive immediate support for your Citi account today.
- Activate a Card
Activate your Citi card online in a few simple steps. Just...
- Open an Account
Whether you need a checking account, a savings account, or...
- Contact Us
If you need to contact Citibank Online for any reason, you...
- Guided Investing
Citibank Online offers convenient and secure banking...
- Personal Loans
Whether you need a personal or business account, a credit...
- Self-Directed Investing
Citi Self Invest is a commission-free and self-directed...
- Citigold Private Client
Citigold Private Client Benefits. New to Relationship...
- Help & FAQs
If you need help with your Citibank online account, you can...
- Activate a Card
Get the most out of your next adventure with the Citi ® / AAdvantage ® Platinum Select ® World Elite Mastercard — a Citi AAdvantage ® miles credit card designed for the world's largest airline. Enjoy preferred boarding, American Airlines AAdvantage ® bonus miles and many more travel rewards.
Manage your American Airlines credit card account online, any time, using any device. Submit an application for a American Airlines credit card now.
Eligible Citi ® / AAdvantage ® cardmembers can use Citi ® Flex Pay at checkout on aa.com or through the American Airlines app and pay over time with fixed monthly payments. Choose a payment plan that fits your needs
get details. 1-800-627-3999 (NY metro area) 1-800-274-6660 (other areas)
Contact a Citi customer service representative by phone, mail or live chat and receive immediate support for your Citi account today.
Your current card was replaced with a contactless–chip enabled card so you can enjoy faster, easier purchases at millions of merchants who have contactless payment readers. Other questions? Please call the customer service number on the back of your card for assistance in your language.
