Nationwide U.S. Flight Ground Stop Caused by Major Comms Outage

UPDATE - follow-up to All departing U.S. flights grounded due to communication outage: Officials confirmed the nationwide ground stop that affected all U.S. airports on Friday, November 13, 2026, was driven by a major communications outage impacting all Air Route Traffic Control Centres. The Federal Aviation Administration described the problem as a temporary telecommunications outage, stating it acted out of an abundance of caution.

Impact and Reactions

The unexpected halt left tens of thousands of passengers in limbo. Some travellers were pulled off planes moments before departure by airline staff. Joseph Anderson, 72, expressed frustration while trying to fly from Las Vegas to Oakland. Tiara Johnson described similar delays at New York's LaGuardia Airport while trying to reach Orlando. Susan Sardina stated she had already boarded her flight back to Orange County when staff told passengers to get off. Meanwhile, airline staff at Harry Reid International Airport in Las Vegas gave conflicting information, suggesting the stop could last anywhere from eight to 24 hours.

Official Stance

Homeland Security Secretary Markwayne Mullin stated there was no sign of a threat to the United States and no indication of a nefarious attack, though officials were not ruling out anything at the time. The incident marked only the second time such an alert was given in U.S. airspace since the 9/11 attacks, following a short nationwide stop in January 2023 caused by a pilot notification system failure.

Background and Context

The FAA order came a day after U.S. Transportation Secretary Sean Duffy and Office of Management and Budget Director Russell Vought asked Congress for $30 billion to upgrade and modernise the Air Traffic Control System. The disruption also coincided with a global Microsoft outage that affected products worldwide, though Microsoft ruled out malicious activity before operations resumed.

Context

Air traffic control ground stops are rare safety measures used by aviation authorities to manage airspace risks when critical communication systems fail. Large-scale technology infrastructure upgrades often require substantial federal funding and legislative approval to prevent widespread system vulnerabilities.