United Airlines was founded in 1926 and began its flight operations in 1931. It provides domestic and international services, managed through its city, airport, and cargo offices. These offices support the airline’s daily operations and assist passengers with bookings, flight information, and cargo services. United Airlines has a strong presence in key locations such as Chicago, Houston, and San Francisco, among others. Travelers can contact United Airlines office representatives for assistance with reservations, baggage inquiries, and flight schedules. Additionally, these offices help with cargo transportation and other travel-related concerns, ensuring smooth operations and customer satisfaction for those flying with United Airlines.