The Federal Aviation Administration (FAA) issued a ground stop for flights arriving at Chicago O’Hare International Airport on Friday evening, August 21, 2026. The FAA stated the ground stop would be in place through 6:30 p.m., holding inbound flights at their departure airports.
Severe Thunderstorm Warnings Affect Chicago Area
Severe thunderstorm warnings were in effect for multiple Chicago-area counties on the evening of August 21, 2026, while the broader Chicago region was under a severe thunderstorm watch. The approaching storms prompted the FAA to take safety action at O’Hare.
Flight Delays and Airport Congestion
Flights departing from O’Hare experienced average delays of 45 minutes due to the ground stop and weather
conditions. Weather delays caused a ripple effect, resulting in backed-up taxiways and crowded gates that hampered airport operations.
The ground stop kept inbound flights at their originating airports until conditions improved, further contributing to delays and congestion at O’Hare.
The FAA expected to transition from the ground stop to a Ground Delay Program after 6:30 p.m. At one of the nation’s busiest airports, these measures are part of the FAA’s management strategy to mitigate flight disruptions caused by severe weather.
