United Airlines is one of the largest full-service airlines in the United States and among the world's leading international carriers. Headquartered in Chicago, Illinois, the airline operates scheduled passenger and cargo services connecting the United States with destinations across North America, South America, Europe, Asia, Africa, Oceania, and the Middle East through an extensive network of domestic and international hubs.
Founded in 1926, United Airlines has grown into one of the world's largest airlines by fleet size and route network. The carrier serves business travelers, leisure passengers, and cargo customers while supporting tourism, international trade, and global connectivity through a comprehensive worldwide route system as a founding member of Star Alliance.
Quick Information
| Type | Full-Service Airline |
| Industry | Air Transportation |
| Founded | 1926 |
| Headquarters | Chicago, Illinois, United States |
| Parent Company | United Airlines Holdings, Inc. |
| Airline Code (IATA / ICAO) | UA / UAL |
| Callsign | UNITED |
| Alliance | Star Alliance |
| Frequent Flyer Program | MileagePlus |
| Main Hub(s) | Chicago O'Hare, Denver, Houston George Bush Intercontinental, Los Angeles, Newark Liberty, San Francisco, Washington Dulles, and Guam |
| Network Coverage | Domestic and international destinations across North America, South America, Europe, Asia, Africa, Oceania, the Middle East, and other regions |
| Official Website | https://www.united.com |
Services
United Airlines provides scheduled passenger flights connecting the United States with destinations across North America, South America, Europe, Asia, Africa, Oceania, the Middle East, and other international markets. In addition to passenger travel, the airline operates global cargo services through United Cargo, supporting international trade, e-commerce, pharmaceuticals, perishables, live animals, and other time-sensitive shipments.
Passengers can access a comprehensive range of travel services, including online and mobile booking, online check-in, airport check-in, premium airport lounges through the United Club network, the MileagePlus loyalty program, special assistance services, and multiple cabin classes. The airline also offers inflight dining, onboard entertainment, Wi-Fi on selected aircraft, travel add-ons, and digital services designed to support travelers before, during, and after each journey.
Fleet & Operations
United Airlines operates one of the world's largest fleets of Airbus and Boeing aircraft serving domestic, regional, long-haul, and international routes. Its fleet supports an extensive global network while maintaining a strong focus on passenger comfort, operational efficiency, safety, and cargo capabilities.
United's major hub airports include Chicago O'Hare, Denver, Houston George Bush Intercontinental, Los Angeles, Newark Liberty, San Francisco, Washington Dulles, and Guam. Together with its Star Alliance partners, the airline provides extensive worldwide connectivity while supporting tourism, business, and international trade across six continents.
United Airlines continues to invest in fleet modernization, cabin innovation, digital passenger services, sustainable aviation initiatives, cargo operations, and operational improvements to strengthen its worldwide network while enhancing the overall travel experience.
Before You Fly
Before your flight with United Airlines, review your booking details, travel documents, and baggage allowance before heading to the airport. International travelers should also confirm passport validity, visa requirements, transit regulations, and destination-specific entry requirements well before departure.
Eligible passengers may complete online check-in through the United website or mobile app before arriving at the airport. Travelers with checked baggage, special travel requirements, or those requiring travel document verification should allow sufficient time to complete baggage drop and check-in procedures.
Passengers are encouraged to arrive at the airport early to allow adequate time for check-in, immigration, security screening, lounge access where applicable, and boarding. Flight status should also be checked before leaving for the airport, as departure gates, boarding times, and operational schedules may change.
Travelers requiring wheelchair assistance, medical support, special meals, or other accessibility services should contact United Airlines before departure. Families traveling with infants or children, passengers flying with pets, sports equipment, musical instruments, or oversized baggage are also encouraged to review the airline's travel policies in advance to help ensure a smoother journey.
Contact Information
| Customer Service | United Airlines Customer Service |
| Official Website | https://www.united.com |
| Mobile App | United Airlines (iOS and Android) |
| Head Office | 233 South Wacker Drive, Chicago, Illinois 60606, United States |
| Telephone | Available through the airline's official customer support channels for each country. |
| Available through the airline's official online enquiry channels. | |
| Feedback / Contact Form | Available through the official United Airlines website. |
| United | |
| @united | |
| X | @united |
| United Airlines | |
| YouTube | United |
Frequently Asked Questions
What is United Airlines?
United Airlines is one of the largest full-service airlines in the United States and among the world's leading international carriers. It operates scheduled passenger and cargo flights connecting the United States with destinations across North America, South America, Europe, Asia, Africa, Oceania, the Middle East, and other international markets.
Who owns United Airlines?
United Airlines is operated by United Airlines, Inc. and is a wholly owned subsidiary of United Airlines Holdings, Inc., a publicly traded company headquartered in the United States.
Where does United Airlines fly?
United Airlines operates an extensive domestic and international network connecting the United States with destinations across North America, South America, Europe, Asia, Africa, Oceania, the Middle East, and other regions. Available routes may change according to operational and commercial requirements.
Does United Airlines belong to an airline alliance?
Yes. United Airlines is a founding member of Star Alliance, allowing eligible passengers to enjoy reciprocal travel benefits, coordinated flight connections, and access to a broad international network operated by fellow member airlines.
What cabin classes are available?
Depending on the aircraft and route, United Airlines offers United Polaris Business, United First, United Business, United Premium Plus, Economy Plus, and United Economy. Available cabin products vary according to aircraft type and destination.
Does United Airlines offer online check-in?
Yes. Eligible passengers can complete online check-in through the United website or mobile app before departure, subject to route and travel document requirements.
Does United Airlines have a frequent flyer program?
Yes. United Airlines operates the MileagePlus loyalty program, allowing members to earn and redeem miles on eligible flights while enjoying travel benefits and partner rewards, subject to the program's terms and conditions.
How can I contact United Airlines?
Passengers may contact United Airlines through its customer service channels, official website, mobile app, or official social media accounts. Booking enquiries, itinerary changes, baggage concerns, refund requests, and special assistance enquiries can also be handled through the airline's customer support platforms.
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