United Airlines was established in 1926 as Varney Air Lines and has a network spread across 48 countries. United Airlines operates on a variety of domestic and international flights. It has 8 hubs in total. In order to manage its operations in over 340+ destinations and make travel easier for its passengers, United Airlines has an airport and city offices. AirlineOfficeWorld offers the contact and other details of these offices to help passengers receive the necessary assistance before travel.