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 ...

American Airlines will be adding nonstop service to seven new destinations from Chicago O’Hare in November and December, ...

Nonstop service to Curacao; St. Croix, U.S. Virgin Islands; St. Maarten; Guatemala City, Guatemala; and San José, Costa Rica, ...