An already fierce competition between United and American airlines for passengers at O’Hare International Airport has ...

The lawsuit claims the city of Chicago has breached the Airline Use and Lease Agreement and would give United Airlines five ...

American Airlines is suing the city of Chicago over a provision in an O'Hare Airport lease agreement it says favors rival United Airlines.

The dispute between United and American airlines that spilled into ... and 2018 over the new lease agreement for O’Hare, which included the terminal overhaul that ultimately will increase ...

American Airlines sued Chicago's Aviation Department, alleging a “gate redetermination” would give United Airlines five more ...

American Airlines will begin flying to seven new destinations from Chicago’s O’Hare International Airport later this year, many of them warm-weather tourism spots. Nonstop service to Curacao ...

American contends that the city, at the request of United Airlines, began a gate redetermination process prematurely and in violation of a lease agreement.