The Federal Aviation Administration issued a ground stop for all arriving flights at Chicago O’Hare International Airport on the evening of August 21, 2026. The ground stop was scheduled to remain in place until 6:30 p.m. local time, with incoming flights held at their departure airports.
FAA Response and Weather Impact
The ground stop was prompted by approaching severe storms affecting the Chicago region. The FAA indicated it plans to transition from the current ground stop to a Ground Delay Program once conditions allow. These operational adjustments were necessary to manage air traffic safely amid deteriorating weather.
On the departing side, flights leaving O’Hare experienced
average delays of 45 minutes. The combination of weather-related disruptions contributed to congested taxiways and crowded gates within the airport, further complicating on-ground operations.
Weather Warnings Across Chicago Region
Severe thunderstorm warnings were active for several counties around Chicago during the same period. A broader severe thunderstorm watch covered much of the Chicago metropolitan area on Friday evening, increasing the risk to flight schedules and ground movements at this major hub.
