The United States Federal Aviation Administration (FAA) has capped the number of daily operations at Chicago O'Hare at 2,708 “to prevent a dramatic increase from last summer’s peak daily schedule,” it announced.

The limitations will be in effect from May 17 to October 27, 2026 and put an end to the ongoing turf war between United Airlines and American Airlines, both of which were increasing their number of scheduled flights at O’Hare to potentially gain more gates and presence at the hub.

The airport’s proposed flight volume before the cap was of 3,080 daily flights on peak days, a 400-frequency increase compared to last year, which would have pressured the airport infrastructure and air traffic controllers, likely ending in lengthy delays and cancellations.

The transportation secretary, Sean Duffy, said that reducing overcapacity at O’Hare “where unrealistic schedules were set to dramatically exceed what they could handle,” will “reduce delays and make this busy summer travel season a little easier.”

The final order on the scheduling limits will be issued on April 20.

ch-aviation schedules data shows that United Airlines currently holds 47.38% of the weekly capacity at O’Hare, followed by American with 35.45%. No other carrier holds over 5%, with Delta Air Lines the closest at 3.1%.