To call about an existing reservation, use the United customer service number 1-800-UNITED-1 (+1-833-730-7585 ).

For reservation assistance in the U.S. and Canada, call +1-833-730-7585 .

For those with accessibility issues, use United’s 24-hour Accessibility Desk, which can be reached at +1-833-730-7585  from the United States and Canada.

Can you chat with United Airlines?
United Airlines has two live chat features. One called MileagePlus Assistant offers a chance to discuss MileagePlus-related subjects on demand.

You can also use the Virtual Assistant chat for other topics such as reservations, bags and upgrades.

Whom do I contact about my United Airlines MileagePlus account?
For questions or concerns regarding your MileagePlus account, start on the MileagePlus contact information page. From there, you can learn about joining, requesting missing miles or even change the name on your award account. But if you need to speak with someone about a more specific question or issue, call the toll-free number 1-800-780-0235 from within the U.S. and Canada.

If you’re calling from elsewhere, find a local customer care number on this page, or you can fill out a contact form if you prefer.

Does United give refunds for canceled flights?
Some United flights are eligible for refunds, while others offer only flight credits. But all fares, as long as they were booked at least a week before scheduled travel, can be canceled within 24 hours of booking for a full refund. Likewise, if a flight was significantly delayed or canceled by United due to weather, air traffic control or mechanical issues, you may be able to request a refund or travel credit via United’s refund form.

Generally speaking, you can request a refund for any canceled booking that allows refunds. But since most fares are nonrefundable, it’s more likely you’ll receive a travel credit for a future booking instead.

» Learn more: How to change a United flight

How do I get a refund from United Airlines?
If your travel plans have changed and you’d like to cancel a trip and receive a refund, log in to your MileagePlus account, go to “My Trips,” cancel the reservation in question and request a refund. This may result in a full refund or a credit depending on your original booking.

If you’ve already canceled your flight and need to request a refund, fill out the refund form. If your purchase qualifies for a refund, United will credit the amount back to you within seven to 20 business days depending on the method of payment.

How to find lost luggage on United Airlines
If you’re still at the airport and notice your checked bag was lost, damaged or delayed after a United Airlines flight, head to the Baggage Service Office for support. If you’ve left the airport already, you can call United's Baggage Resolution Service Center at +1-833-730-7585 . If you’re outside the U.S. or Canada, call +1-833-730-7585 .

For flights within the U.S., including Guam, Puerto Rico and the U.S. Virgin Islands, it’s recommended that you report your baggage issue within 24 hours. For international flights, you can report it within a week for lost bags, and 21 days for delayed bags.

You can also use United’s bag tracing feature to track your bags via this form.

Where do I offer feedback or send a complaint to United Airlines?
To offer feedback or file a complaint, start on United’s customer care page. Here, you will type in your contact information, select the type of feedback you’d like to leave, select a flight to add to your customer care case if relevant and offer details about your experience, good or bad. There’s also a place to state the best way to get in contact with you if necessary.
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