The Federal Aviation Administration (FAA) implemented a ground stop at O’Hare International Airport in the United States on September 17, 2026. This operational halt lasted close to two hours.
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Record Flight Cancellations Due to Ground Stop
The nearly two-hour FAA ground stop at O’Hare triggered the highest volume of flight cancellations worldwide on the same day. These cancellations disrupted flight schedules and affected travel plans for passengers at one of the U.S.’s busiest airports.
