United Airlines Customer Service Numbers: Flights, Baggage, Refunds and Complaints

United Airlines’ main customer-service phone number is 1-800-864-8331, also written as 1-800-UNITED-1. United lists this reservations line as available 24 hours daily. If your flight is today, open the United app or My Trips first for live rebooking and travel options, then call or text UNITED to 32050 if you still need an agent.

Updated August 30, 2026. Phone numbers, text routes, refund information, baggage support, accessibility contacts and disruption guidance were checked against current United Airlines and U.S. Department of Transportation resources.

United Airlines Customer Service Numbers

United Vacations, United Cargo, a United Club membership, a partner-airline flight and a ticket sold by a travel agency can require a separate support route. Check the operating carrier and merchant shown on the itinerary or receipt before calling.

Best United Airlines Support Route by Issue

• New booking, reservation change, seat or upgrade: Use United.com, the United app, My Trips or 1-800-864-8331.
• Flight departing today: Start with the United app or My Trips because they show live itinerary and rebooking options; then use text, phone or airport staff.
• Delay, cancellation or missed connection: Check self-service rebooking and ask United to identify the reason for the disruption.
• Refund: Use the refund form and keep the ticket number and submission confirmation.
• Delayed or damaged checked bag: Report it at the airport when possible, retain the file-reference number and use Bag Help or 1-800-335-2247.
• Item left on the aircraft or at an airport: Use United’s Lost and Found form instead of opening a checked-baggage claim.
• MileagePlus account or missing miles: Sign in or call 1-800-421-4655.
• Wheelchair, seating, service-animal or medical-equipment assistance: Call 1-800-228-2744.
• Complaint after travel or expense reimbursement: Use the Customer Care form rather than repeatedly calling reservations.

What to Have Before Contacting United Airlines

• Confirmation number or record locator
• Ticket number and passenger name as shown on the ticket
• Flight number, date, origin, connection and destination
• MileagePlus number when relevant
• Scheduled and actual departure or arrival times
• United’s stated reason for a delay or cancellation
• Bag tag and 13-character baggage file-reference number
• Receipts for meals, hotels, transportation or delayed-bag necessities
• Photos of baggage damage, app errors or other relevant conditions
• Refund, baggage, accessibility or Customer Care case number
• Travel-agency, credit-card portal or partner-airline details
• The specific rebooking, refund, reimbursement or correction requested

Keep ticket receipts, boarding passes, bag tags, app notifications and chat transcripts. Do not place full ticket numbers, confirmation codes, passport details, Known Traveler Numbers, MileagePlus passwords, payment information, medical information or photographs of unrelated passengers in a public review.

United Flight Delays, Cancellations and Travel Today

For an active trip, open the United app or My Trips before waiting in a phone or airport line. Check the new departure time, gate, connection and available self-service flights. If those options do not work, text UNITED to 32050, call 1-800-864-8331, use Agent on Demand when offered or speak with airport staff.

Ask United to identify the documented cause of the disruption. Weather and air-traffic-control events can be treated differently from disruptions within the airline’s control. Also ask:

• What is the earliest confirmed United flight?
• Can United rebook the itinerary on a partner airline?
• Will the connection still be protected?
• Does the delay qualify for a meal, hotel or transportation voucher?
• How will checked baggage be handled?
• Will accepting the new flight affect the ability to obtain a refund?

Save screenshots before accepting or declining a new itinerary. Do not cancel an entire round trip or multi-city reservation until you understand what will happen to every remaining segment.

United Airlines Refunds, Travel Credits and Fee Refunds

Use United’s refund form for a ticket, baggage-fee or optional-service refund. If a ticket qualifies, United says the refund is credited to the original form of payment.

Under current U.S. Department of Transportation rules, a passenger is entitled to a refund when an airline cancels a flight or significantly changes or delays it and the passenger chooses not to travel, accept rebooking, take a travel credit or accept other compensation instead. Current significant-change examples include:

• Departure at least three hours earlier or arrival at least three hours later for a domestic itinerary
• Departure at least six hours earlier or arrival at least six hours later for an international itinerary
• A different origin or destination airport
• Additional connections
• An involuntary downgrade
• Certain accessibility-related aircraft or connecting-airport changes

A traveler who accepts the changed or replacement flight is generally not entitled to a full airfare refund under these rules. A traveler who completes the trip may still have a separate request involving a downgrade, missing paid service, baggage fee or reasonable expenses.

Refund versus travel credit

Compare the amount, expiration, transferability and restrictions before choosing a credit or voucher instead of a refund to the original payment method. DOT rules require eligible refunds to be automatic and generally issued within seven business days for credit-card purchases or 20 calendar days for other payment methods.

Paid service was not provided

A fee for a service such as a paid seat, upgrade, Wi-Fi or another optional feature may be refundable if the airline did not provide it through no fault of the passenger. Keep the receipt and document what was unavailable.

United Meal, Hotel and Expense Reimbursement

A ticket refund, expense reimbursement and voluntary compensation are different requests. United’s commitments for qualifying cancellations or significant delays within its control currently include rebooking on United without an additional fare, rebooking on a partner airline or another airline with which it has an agreement, a meal or meal voucher for a wait of at least three hours, hotel accommodation for an overnight disruption and transportation between the airport and hotel.

These commitments do not automatically apply to every weather, air-traffic-control, security or airport event. Ask whether United classifies the disruption as controllable and save the answer. If no voucher is available, ask what reasonable expenses United will consider before spending money. Keep itemized receipts and submit reimbursement through Customer Care.

United Delayed, Lost or Damaged Baggage

Report a delayed, damaged or missing checked bag before leaving the airport when possible. Obtain a 13-character file-reference number, confirm the delivery address and keep the original bag tag. Use United’s Bag Help, baggage tracing, text BAGS to 32050 or call 1-800-335-2247.

Delayed checked bag

1. File the mishandled-baggage report promptly.
2. Save the file-reference number and bag tag.
3. Confirm the delivery address and contact information.
4. Keep itemized receipts for reasonable essential purchases.
5. Track the bag and submit any reimbursement claim through the proper form.

United directs customers to its lost-bag claim form when a previously reported delayed bag has been missing for more than five days.

Checked-bag fee refund

DOT rules can require the baggage fee to be refunded when a passenger files a mishandled-baggage report and the bag is lost or significantly delayed. The current thresholds are more than 12 hours after a domestic arrival, more than 15 hours after an international flight of 12 hours or less, or more than 30 hours after a longer international flight. Exceptions can apply.

A baggage-fee refund is separate from reimbursement for reasonable expenses caused by the delay.

Damaged baggage or missing contents

Photograph the bag, damage, tag, packaging and affected contents before repair or disposal. Keep purchase receipts or reasonable value records. Normal wear, overpacking and certain fragile or excluded items can be treated differently, and international claim deadlines may apply.

Items Left on a United Aircraft or at an Airport

An item left in a seat pocket, lounge, gate area or airport is different from a missing checked bag. Use United’s Lost and Found form and describe the brand, color, size, location and unique features. Airport security, concessions or another airline may control the location where the item was lost.

If an electronic device falls into an aircraft seat mechanism, do not move the seat repeatedly. Ask a crew member for help.

United MileagePlus Customer Service

Call 1-800-421-4655 or 1-713-952-1630, where charges may apply, for MileagePlus account access, missing miles, award travel, profile problems or program questions. Sign in first when possible so you can identify the transaction, flight or partner activity involved.

Keep the boarding pass, ticket receipt, partner-airline receipt and account screenshot for a missing-mile request. Do not disclose the MileagePlus password or one-time code to an unexpected caller.

United Airlines Accessibility and Special Assistance

United’s 24-hour Accessibility Desk is 1-800-228-2744. Use it for wheelchair or mobility assistance, accessible seating, service animals, medical devices, oxygen-related questions and other disability-related travel needs. Add the request to every affected flight and connection, then confirm it before departure.

If an accessibility issue occurs at the airport, ask specifically for United’s Complaint Resolution Official, or CRO. A CRO is trained to address disability-related air-travel concerns. Record the flight, airport, time, assistance requested and response. Keep essential medication and medical devices in carry-on baggage when permitted.

United Tickets Booked Through a Travel Agency or Partner

If a travel agency, credit-card portal, cruise line, corporate travel system or another airline sold the ticket, identify the merchant of record and ticketing carrier. United may control flight operations while the original seller controls certain voluntary changes, cancellations or ticket refunds.

For a codeshare, confirm both the marketing flight number and operating carrier. Airport check-in, baggage reporting, seat assignment and disruption assistance may belong to the operating airline, while ticket changes may remain with the seller.

United International Reservations and Travel Help

Use United’s international reservations directory for the correct country or region. Calling a U.S. toll-free number from abroad may not work or may create charges.

For passport, visa, health-entry or destination requirements, verify current government information rather than relying only on airline customer service. If the trip involves another operating carrier, confirm that carrier’s check-in, baggage and document rules as well.

United Airlines Customer Reviews and Complaints

The live CustomerServiceNumbers.com page currently shows 0 out of 5 stars based on 0 reviews. There is not yet enough CSN feedback to describe a United Airlines rating pattern.

The related ZeroStars page currently shows -4 stars based on two reviews. Those reviews discuss wheelchair assistance, boarding and cabin service in one case and repeated disruptions, baggage and rebooking problems in the other. Two reviews are a very small, self-selected sample and should not be treated as a measure of every United flight or passenger experience.

For additional company and complaint context, see:

• United Airlines corporate office, headquarters and complaint information
• United Airlines reviews and complaints on ZeroStars

What to include in a useful United Airlines review

State the approximate travel date, route, fare or cabin, issue, support route, documented cause of any disruption, promised resolution and final outcome. Explain what United handled well as well as what could have been improved.

How to Escalate a United Airlines Complaint

1. Start with the responsible route. Use reservations for an active itinerary, baggage for a checked-bag report, MileagePlus for loyalty issues and the Accessibility Desk for special assistance.
2. Resolve urgent travel needs first. Rebook and protect the active trip before pursuing a post-travel complaint.
3. Obtain a reference. Keep the baggage file, refund request, Customer Care case or accessibility record.
4. Separate requests. A ticket refund, baggage-fee refund, expense reimbursement and goodwill request can require different forms and evidence.
5. Submit the written complaint. Use United’s Customer Care form with a concise timeline, records and requested resolution.
6. Follow up through the same case. Identify the specific promised action that remains incomplete.
7. Use an outside complaint route when appropriate. Travelers may file an air-travel complaint with the U.S. Department of Transportation.

United Airlines Customer Care mailing address:
Customer Care – NHCCR
United Airlines, Inc.
900 Grand Plaza Drive
Houston, TX 77067-4323

This is a Customer Care correspondence address, not a baggage, device, ticket-payment or airport lost-and-found location. Send copies rather than original travel documents and keep proof of delivery.

United Airlines Customer Service Frequently Asked Questions

What is United Airlines’ customer-service phone number?

Call 1-800-864-8331, also written as 1-800-UNITED-1. United lists the line as available 24 hours daily.

How do I text United Airlines customer service?

Text UNITED to 32050. United says live text agents are available 24/7. For baggage help, text BAGS to 32050.

What is the United Airlines baggage phone number?

Call the Baggage Recovery Center at 1-800-335-2247. Report a missing or damaged checked bag promptly and keep the file-reference number.

How do I request a United Airlines refund?

Use United’s online refund form and keep the submission confirmation. A post-travel expense reimbursement request belongs with Customer Care rather than the ticket-refund form.

Am I entitled to a refund if United cancels my flight?

Under current DOT rules, a passenger is entitled to a refund if the airline cancels the flight and the passenger chooses not to travel, accept rebooking, take a travel credit or accept another form of compensation instead.

What is the MileagePlus customer-service number?

Call 1-800-421-4655. United also lists 1-713-952-1630, where charges may apply.

How do I contact United about accessibility assistance?

Call the 24-hour Accessibility Desk at 1-800-228-2744. At an airport, ask for United’s Complaint Resolution Official when a disability-related issue remains unresolved.

Where do I complain after a completed United flight?

Use United’s Customer Care form. Include the flight, date, route, ticket information, concise timeline, receipts, prior references and requested resolution.

What is United Airlines’ corporate phone number?

United Airlines Holdings lists its principal executive office telephone number as 1-872-825-4000. This is a corporate line, not the best route for a reservation, active disruption, baggage report or routine passenger complaint.

Where is United Airlines headquartered?

United Airlines is headquartered at 233 South Wacker Drive, Chicago, Illinois 60606.

Compare Other Airline Customer Service Pages

• American Airlines customer service
• Delta Air Lines customer service
• Southwest Airlines customer service
• JetBlue customer service
• Frontier Airlines customer service

Official United Airlines and DOT Sources Checked

• United reservations and specialized contact numbers
• United text messaging support
• United Help Center
• United delayed and canceled flight help
• United Customer Commitment
• United refund form
• United refund policy
• United Bag Help
• United Lost and Found
• MileagePlus customer service
• United accessible travel
• United Contract of Carriage
• DOT airline refund rights
• DOT Airline Cancellation and Delay Dashboard

Why Trust CustomerServiceNumbers.com?

CustomerServiceNumbers.com has helped consumers locate customer-service information and share experiences since 2004. This page separates reservations, active travel, refunds, baggage, MileagePlus, accessibility and post-travel complaints and records when the information was checked.

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Customer Service Information Disclaimer

CustomerServiceNumbers.com is an independent consumer-help website and is not owned or operated by United Airlines, Inc., United Airlines Holdings, Inc., United Express, MileagePlus, Star Alliance, an airport, a partner airline or a travel agency. Contact information, schedules, refund rules, baggage policies, accessibility procedures and airline commitments can change. Verify trip-specific instructions through United’s official website, app, itinerary or authorized support team. Passenger rights can depend on the itinerary, jurisdiction, ticket, operating carrier and circumstances. This page does not provide legal, travel-insurance or compensation advice.