The competition between United Airlines and American Airlines is intensifying as both carriers expand service at Chicago O’Hare International Airport.
American Airlines recently announced a series of new non-stop routes from O’Hare, including service to Appleton, Wisconsin (ATW); Birmingham, Alabama (BHM); Boise, Idaho (BOI); Colorado Springs, Colorado (COS); Greensboro, North Carolina (GSO); Greenville, South Carolina (GSP); and Ontario, California (ONT) on a seasonal basis. The carrier also added new flights linking O’Hare with Bozeman, Montana (BZN), and Hattiesburg, Mississippi (PIB).
United Airlines has responded with its own expansion, introducing new service to Champaign, Illinois (CMI); Columbia, Missouri (COU); Rochester, Minnesota (ROC); and Santa Rosa, California (STS). United will operate the three Midwest routes from O’Hare and has increased frequency on existing routes to Charlottesville, Virginia (CHO); Reno, Nevada (RNO); Spokane, Washington (GEG); and Tucson, Arizona (TUS).
Scott Kirby, president of United Airlines, described the move as a strategic offensive when unveiling an expansion spanning 22 domestic routes. Kirby, who joined United after leaving American Airlines, emphasized the airline’s effort to grow its network and connect more communities through O’Hare.
At American Airlines, president Robert Isom highlighted the carrier’s focus on linking small and mid-sized markets with major hubs. In a memo to employees, Isom noted that adding service to smaller communities since the US Airways merger has given travelers more options while strengthening feed and profitability across the network.
Both carriers appear focused on leveraging O’Hare’s position as a major connecting hub to serve regional demand and capture market share in underserved city pairs. The new and expanded routes boost local connectivity and offer passengers additional direct choices between Chicago and smaller markets across the Midwest, West and Southeast.
As the airlines roll out these schedules, travelers in the affected cities can expect increased non-stop options to Chicago, while O’Hare’s route map becomes more diverse. The competitive push highlights how legacy carriers continue to refine their networks to balance local demand, hub connectivity and overall profitability.