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United Airlines Holdings, Inc. (formerly known as United Continental Holdings, Inc., UAL Corporation, Allegis Corporation and founded originally as UAL, Inc. [3]) is a publicly traded airline holding company headquartered in the Willis Tower in Chicago. [4] UAH owns and operates United Airlines, Inc.
UAL, Inc. was the creation of then United Airlines president George Keck, who formed the holding company to allow United to diversify. Between 1970 and 1988 UAL, Inc. acquired the Westin and Hilton hotel chains and the Hertz car rental company, as well as a regional airline , a reservations network, and several leasing and insurance companies.
United Airlines, Inc. is a major airline in the United States headquartered in Chicago, Illinois. [3] United operates an extensive domestic and international route network across the United States and all six inhabited continents [10] primarily out of its seven hubs, with Chicago–O'Hare having the largest number of daily flights [11] and Denver carrying the most passengers in 2023. [12]
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Galileo traces its roots back to 1971 when United Airlines created its first computerized central reservation system under the name Apollo. During the 1980s and early 1990s, a significant proportion of airline tickets were sold by travel agents. Flights by the airline owning the reservation system had preferential display on the computer screen.
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Further contact details, such as agency phone number and address, additional phone contact numbers at passenger address and intended destination. Age details if it is relevant to the travel, e.g., unaccompanied children or elderly passengers requiring assistance. Frequent flyer data. Seat allocation (or seat type request).
United Airlines and Trans World Airlines followed in 1971 with the Apollo Reservation System and Programmed Airline Reservation System (PARS), respectively. Soon, travel agents began pushing for a system that could automate their side of the process by accessing the various ARSes directly to make reservations.