The Federal Aviation Administration (FAA) imposed a ground stop at O’Hare International Airport on September 17, 2026, lasting nearly two hours. During this period, all flight operations at the airport were temporarily suspended.
O’Hare International Airport recorded the highest number of flight cancellations worldwide on the same day due to the FAA’s imposed halt. The stoppage caused widespread flight cancellations and delays, affecting passengers across the airport’s network.
