United Airlines Holdings, Inc. is a publicly traded airline company headquartered in Chicago, IL. In 1929, these two entities Boeing Air Transport (est. 1927) and Pratt & Whitney(est. 1925) consolidated and formed United Aircraft and Transportation Corporation (UATC), which subsequently acquired various airlines at the time and later formed United Air Lines, Inc. as a holding company. The predecessors to the formation of the current structure responded to the United States Post Office Department?s call to transport air mail over certain routes across the United States.
In 2010, United Air Lines merged with Continental Airlines to form United Continental Holdings, which later changed its name to United Airlines Holdings Inc. in 2019.
