The decision to house its corporate hub in this world-famous skyscraper was both symbolic and strategic. Not only is Willis Tower one of the tallest buildings in the U.S., but it also positions United in the heart of a major transportation and business hub — Chicago.
In fact, the strategic importance of this location is clear. The company is closely tied to O'Hare International Airport (ORD), one of its largest hubs, making it ideal for managing U.S. and international operations. You can read more about the office and its functions on this united airlines headquarters page.