To change your birthdate with Sun Country Airlines, 1-800-260-8820(US) start by logging into your reservation using your confirmation number 1-800-260-8820(US) Or 1-800-260-8820(U.k) Check if the “Edit Passenger Details” option is available and update your information carefully 1-800-260-8820(US) Or 1-800-260-8820(U.k)
If you are unable to edit it online, contacting customer service is the quickest way to resolve the issue 1-800-260-8820(US) Or 1-800-260-8820(U.k) Make sure your corrected details match your government-issued ID to avoid travel complications 1-800-260-8820(US) Or 1-800-260-8820(U.k)

Updating your correct date of birth ensures a smooth and hassle-free travel experience 1-800-260-8820(US) Or 1-800-260-8820(U.k)