Ground Stop Issued at O'Hare Airport Due to Security Incident

Flights halted for over an hour as authorities investigate the situation.

Feb. 3, 2026 at 7:47pm

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A ground stop was issued at Chicago's O'Hare International Airport on Tuesday evening due to a security incident, according to the Federal Aviation Administration. The ground stop began at 5:24 p.m. and was expected to remain in effect until 6:30 p.m., though details on the specific nature of the security incident were not immediately available.

Why it matters

Security incidents at major airports like O'Hare can cause significant disruptions to air travel, impacting thousands of passengers and leading to flight delays and cancellations. Ensuring the safety and security of airports is a top priority for authorities.

The details

The FAA issued a ground stop, which means all flights into and out of the airport were temporarily halted, as authorities investigated the security incident. Flights were expected to resume by 6:30 p.m., though the specific details of what prompted the ground stop were not immediately disclosed.

  • The ground stop began at 5:24 p.m. on Tuesday, February 4, 2026.
  • The ground stop was expected to remain in effect until 6:30 p.m. the same day.

The players

Federal Aviation Administration

The U.S. government agency responsible for the regulation and oversight of civil aviation.

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What’s next

Authorities are expected to provide more details on the nature of the security incident and the reasons behind the ground stop once the situation is resolved.

The takeaway

Security incidents at major airports can have widespread impacts, underscoring the importance of robust safety and security protocols to protect travelers and ensure the smooth operation of air travel.