Complaints to United Airlines: Contact Customer Support, Phone, Email

Joanna Teljeur

By:  Joanna Teljeur

Last Updated:  October 29, 2026

In 2023, United Airlines received approximately 6 passenger complaints for every 100,000 people according to Statista, and they scored a 77 out of a 100 on their customer satisfaction score. To better understand these numbers, Frontier had roughly 20 complaints for every 100,000, and Alaska Airlines had the highest customer satisfaction rating with a score of 81.

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United Airlines Contact Info

Beyond checking to see the status of your United Airlines flight, you might need to contact them to file a complaint for delays, canceled flights, or baggage mishandling. 

Anytime you have issues with an airline, you should always try to address the problem as soon as it happens, and ideally while you’re still at the airport. Understandably, this might not always be possible, in which case you’ll need to contact United in other ways to lodge a complaint. If you want to file a United compensation claim, you’ll have to do so in writing, but more on that later.

United Airlines Customer Service

Calling United usually involves waiting for some time on hold until you can speak to a live person. So, if you want to avoid the hassle of phoning the airline, you can try to reach them through other means.

If you want to avoid the trouble of filing a compensation claim on your own, you can let the experts at AIrAdvisor handle the claims process for you!

Contacting United Airlines By Phone

Toll Free Number for United 

English: 1 (800) 864-8331 (Available 24/7) This number serves as the primary contact line for inquiries and it gives passengers a free option for speaking with United Airlines’ customer service. 

1-855-820-3610 Help with reservations

1-800-335-2247 Baggage Issues (Toll free in the U.S. and Canada)

1-281-821-3526 Baggage issues for other regions

1-800-228-2744 If you have issues with accessibility, you can call toll free

1-800-490-2021 Receipts

1-800-323-0170 For those who are deaf or hearing impaired

1-800-780-0235 MileagePlus members can call

This page has contact information in regions outside the U.S. and Canada.

Tips for Contacting United Airlines Customer Service

Before you call or write to the airline, be sure to gather all relevant information so you can provide the necessary information.

1. The names of all the passengers on your booking
2. Your home address if you live in the U.S. 
3. Email
4. Receipts
5. Boarding pass and ticket numbers
6. Travel Dates
7. Your arrival and departure cities
8. Reason for your complaint

Sending Complaints by email to United Airlines

On their website, United states that:

We will acknowledge written complaints within 30 days of receipt and we will send a substantive written response within 60 days of receiving your written complaint.

For complaints, start by visiting the United Airlines Customer Care page. You’ll find a variety of options that address various passenger concerns from ticketing questions to refund info and general customer care.

If you know that you want to submit a complaint to United for a flight disruption, then sending it via email is probably your best option. In most cases, you will need to send the airline a complaint in writing along with information and documentation supporting your claim. 

United Airlines’ email address is: customercare@united.com.

Additional United Services and Channels 

• Booking management for MileagePlus members
• Access via the United Airlines app
• Status of refunds
• Lost or Damaged Luggage

Physical Address

United Airlines, Inc.
233 South Wacker Drive
Chicago, Illinois 60606
USA

Live chat option from United

You can find a live chat on the United site.

Contact United Airlines via social media

You can almost always get in touch with an airline representative by going to United’s social media channels. You might not get the right person for your issues immediately, but they can put you in touch with the right people.

Facebook

Twitter

Instagram

What to do if United’s customer service doesn't respond?

Most airlines are flooded with complaints and compensation claims, and United is no exception. Because of this, they might take a very long time to respond, or they might not do so at all.

If this happens to you, remember that AirAdvisor can take the necessary steps to get compensation for you. This means we will submit your compensation form and provide all the relevant details about your flight disturbance, and then follow up with the airline, even if that means taking them to court.

Step-by-step instructions for a complaint with UnitedAirlines

For a successful claim, you’ll need to submit as much detailed documentation as possible including the following:

1. Personal information: Your full name, contact information, and address. Make sure this information matches what you provided when you purchased your ticket(s).
2. Flight details: Add the details of your flight disruptions, including the flight number, date, as well as departure and arrival airport.
3. Type of interruption: Describe what happened - whether you had a delay, cancellation, denied boarding, or a missed connection.
4. Details about your flight disruption: If your flight was delayed or canceled, provide the scheduled departure/arrival times as well as the actual departure/arrival time. If your flight was canceled, then  include the reason given to you by airline staff.
5. Information on denied boarding: If you were denied boarding, say whether it was a voluntary or involuntary denial and indicate the reason given to you by the airline.
6. Additional costs: If you incurred expenses as a result of the delay, include this information as well, along with any receipts. This is important because you may be able to get reimbursed for these.

United Airlines Compensation Forms

How can I file a complaint with United?

The compensation form is a very important document that you need in order to apply for compensation from the airline. It’s used to collect all your flight and personal information in order to process your claim.

As you might imagine, United isn’t going to help you lodge a complaint against them. So, to help you write the most effective letter/email possible, we’ve created the following templates.

• Sample Complaint Letter for Poor Service
• Sample Airline Request Letter for Compensation
• Sample Complaint Letter for Refunds

You can also find out how much you could get in compensation by using our compensation calculator. Just enter a few details about your flight with United Airlines as well as some basic details about yourself. If you are eligible for compensation or a  refund, we can assist you with the application.

File a complaint with AirAdvisor

You can make sure your compensation claim is successful and avoid unnecessary worry and frustration by letting our team of legal professionals handle your claim for you. Why? Well, we’ve been defending air passengers rights since 2017, and we win 98% of the cases we represent. Not only that, but we can do this for you risk free because we operate on a No-win, No-fee basis. Get started today by entering your flight details below!

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Common Questions: United Airlines Complaints

Author:

Joanna Teljeur

Job/Position: Senior Editor & Content Lead

Joanna Teljeur is a senior editor and writer with 15+ years of experience in editorial leadership, journalism, and content development, specialising in consumer rights, aviation law, and public-interest reporting. Her work focuses on transforming complex regulatory and legal topics into clear, accurate, and accessible content for international audiences.

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