The intriguing element is that in its infrastructure plan, United Airlines outlined the potential to develop five office buildings, at least two parking structures and common space for uses like a food hall, meeting rooms, fitness center and a 50,000-square-foot conference center. United spokesperson Pat Mullane told WGN Investigates:

United Airlines has filed a master plan with the City of Denver, indicating potential plans to build over 1 million square feet of office space.

United Airlines has filed a master plan with the City of Denver, indicating potential plans to build over 1 million square feet of office space to accommodate up to 6,000 employees, while also

Billings Logan International Airport is set to welcome new seasonal flights by United Airlines, offering direct service to Chicago O'Hare International Airport. This addition aims to enhance

FOX31's Matt Mauro breaks down a new filing with the city of Denver that could signal a big move for United Airline's headquarters.