The United Airlines headquarters is located in the iconic Willis Tower (formerly known as the Sears Tower) in Chicago, Illinois. This strategic location places the company in the center of one of the United States’ busiest air travel corridors. Being close to O'Hare International Airport (ORD) — a major hub for United — ensures seamless coordination between corporate strategy and daily flight operations. https://airlinestermnals.com/airlines-offices/united-airlines/united-airlines-headquarters/