FAA issues ground stop at O'Hare

The Federal Aviation Administration issued a ground stop at Chicago O’Hare International Airport on May 19 because of thunderstorms, according to the agency’s National Airspace System dashboard. The stop began at 3:15 p.m. PDT and was initially scheduled to last until 4:45 p.m. PDT, while O’Hare departures were also showing average delays of about 30 minutes. NBC Chicago reported a later ground stop was issued Tuesday evening as storms continued to affect the airport. The weather disruption landed as the FAA is already forcing airlines to trim O’Hare’s summer schedule after warning that the airport had been overscheduled. On April 16, the agency said it would cap daily operations at 2,708 at O’Hare to reduce delays and safety risks during the peak travel season. (nasstatus.faa.gov) ### Why was there a ground stop at O’Hare on Tuesday? The FAA said the May 19 ground stop at O’Hare was due to thunderstorms. The agency’s status dashboard listed the airport under a ground stop and a separate departure delay program tied to weather. NBC Chicago reported that flights arriving at O’Hare were halted around midafternoon and that another stop was later issued at 5:15 p.m. local time. (faa.gov) Midway Airport was not showing the same impact at that point, NBC said. ### What is the FAA doing to O’Hare’s summer schedule? (nasstatus.faa.gov) The FAA said on April 16 that O’Hare will be limited to 2,708 daily takeoffs and landings during the summer scheduling period. The agency said airlines had planned more than 3,080 flights on peak summer days, a 14.9% increase from summer 2025. (nbcchicago.com) Sean P. Duffy, the U.S. transportation secretary, said at the time that the goal was to prevent “endless delays and cancellations.” FAA Administrator Bryan Bedford said schedules must reflect what “the system can safely handle.” ### How big is the cut from what airlines wanted? (faa.gov) The FAA’s limit removes more than 300 planned daily flights from the peak summer schedule at O’Hare. CBS Chicago said the original peak-day plan was 3,080 flights, while the final cap was set at 2,708. (faa.gov) The FAA said O’Hare had fewer than 60% of arrivals and departures on time last summer. The agency also cited constrained gate capacity and taxiway closures from construction as factors behind the order. ### Why did O’Hare end up overscheduled? (cbsnews.com) ABC7 Chicago reported in March that the FAA had warned O’Hare’s planned summer traffic was more than the airport could handle. The station said the dispute was tied to competition between United Airlines and American Airlines, which were both adding flights as they sought to strengthen their positions at the airport. (faa.gov) The Chicago Sun-Times reported on May 1 that United was cutting more than 100 daily flights at O’Hare to comply with the federal order. The paper said United’s revised summer schedule would be about 650 daily departures, down from roughly 780, while American expected to trim around 40 daily arrivals and departures. (abc7chicago.com) ### When do the summer limits actually take effect? CBS Chicago reported on April 24 that the FAA pushed back the start of the O’Hare reductions from May 17 to June 2. The end date remained Oct. 24, and the agency said the delay would give airlines more time to modify schedules because of existing crew assignments for the summer season. (chicago.suntimes.com) The FAA said its order allocates operations among airlines based on approved summer 2025 schedules. That means the next concrete step is carrier schedule changes and passenger notifications as the June 2 start date approaches. (faa.gov) (cbsnews.com)