FAA Ground Stop Causes Over 6,700 US Flight Cancellations on Nov 13

The Federal Aviation Administration (FAA) ordered a nationwide ground stop on all departing flights on November 13, 2026, causing significant air travel disruptions across the United States. The stoppage lasted more than four hours for safety reasons linked to infrastructure upgrades from copper wires to fiber-optic systems managed by L3Harris Technologies. On that day, nearly 6,700 flights were canceled, with over 9,200 cancellations recorded on the following Sunday, and more than 2,000 delays were reported by FlightAware.

Airlines, including Delta Air Lines, scrambled to manage the backlog, waiving change fees and offering extra pay to crews. Travel disruptions persisted two days later, with over 1,400 flights canceled as of early Sunday morning. Passengers experienced extended delays, cancellations, and rerouting, causing some to sleep at airports and take lengthy detours to reach their destinations.

Transportation Secretary Sean Duffy attributed the incident to the ongoing system upgrade. The FAA described the maintenance as routine. L3Harris Technologies confirmed they were supporting the FAA's investigation into the ground stop. This event showcases how infrastructure issues can halt national air travel and strain airline operations.

For investors and market participants, the delays highlight potential operational risks in airline and avionics sectors stemming from critical infrastructure updates. The cancellations and delays may also influence airlines' costs directly due to compensation and crew overtime, affecting their short-term financials.