https://www.united.com/web/en-US/content/contact/customer/default.aspx

... or feedback regarding United Airlines or your previous travel with United, contact us using this form. ... Contact Customer Care ... Retype email address:*

https://www.united.com/ual/en/us/fly/contact.html

Find contact information for United customer service including assistance with reservations, MileagePlus, baggage, refunds and more.

https://www.united.com/web/en-US/content/contact/technical/default.aspx

If you are having problems with United.com reservations, contact us via phone or email.

https://www.united.com/web/en-US/content/Contact/mileageplus/contact.aspx

Contact a MileagePlus representative via phone, email, fax or regular mail.

https://www.united.com/web/en-US/content/help/phoneorder.aspx

To complete the reservation or to provide your payment information over the phone, you may contact United Reservations in the U.S. and Canada at ...

https://www.united.com/web/en-US/content/contact/reservations/default.aspx

For ticket purchase or making changes to an existing reservation, find the appropriate contact by selecting your current location.

https://www.united.com/web/en-US/content/customerfirst.aspx

We are committed to providing a level of service to our customers that makes us a leader in the airline industry. Read our United Customer Commitment.

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