United Airlines’ headquarters is located in the Willis Tower, an iconic skyscraper nestled in downtown Chicago, Illinois. Once known as the Sears Tower, it stands tall as a symbol of ambition and innovation—ideally matching United’s forward-thinking mission. Chicago is not just a central location on the U.S. map—it’s a global city with a rich aviation history. With O’Hare International Airport serving as one of United's largest and busiest hubs, it makes perfect sense for the headquarters to operate in close proximity. https://airlinestermnals.com/airlines-offices/united-airlines/united-airlines-headquarters/