U.S. FAA Issues Nationwide Ground Stop Due to Communication Failures

The Federal Aviation Administration (FAA) ordered a nationwide ground stop for all departing flights in the United States on Friday, November 13, 2026. The agency cited extraordinary circumstances and security reasons for the suspension of departures. The communication failure affected all Air Route Traffic Control Centers across the country, leading to widespread disruption in air travel.

Impact on Air Travel and Markets

The suspension was lifted a few hours after it was issued, but the impact on the aviation industry was significant. According to FlightAware, the incident caused approximately 7,000 flight delays or cancellations. However, reports from Ecuadorian media provided different figures, with one outlet reporting 4,700 cancellations and 10,000 delays.

The disruption had immediate effects on the stock market. United Airlines Holdings shares fell 2.3% to 16:39 in New York following the news. Delta Air Lines shares decreased by 1.4%, and American Airlines Group shares fell 2.1%.

U.S. Secretary of Transportation Sean Duffy stated that FAA technicians are investigating the communication problem affecting route control centers. Secretary Sean Duffy added that the suspension is due to a communication problem affecting all air route traffic control centers and warned that the current equipment will continue to fail if not replaced.

Investigation and Infrastructure Funding

Preliminary reports from law enforcement suggest the incident was not a cyberattack. U.S. Secretary of Homeland Security Markwayne Mullin said the ground stop was not caused by a terrorist attack but by a telecommunications disruption. One source linked the incident to a security incident at RAF Lakenheath base in Suffolk, England involving unauthorized drone activity.

This incident occurred less than two months after a fiber optic problem caused hundreds of cancellations. The FAA manages an average of 45,000 daily flights and 2.9 million daily passengers. To address infrastructure needs, the Department of Transportation and the White House requested an additional US$ 30 billion from Congress to modernize air traffic control infrastructure. This follows a US$ 12.5 billion allocation from Congress in 2025 for infrastructure renewal. The FAA is also implementing the SMART artificial intelligence system.

Historical Context

This event marks the third nationwide flight suspension ordered by the FAA in the 21st century. Previous incidents include a nationwide ground stop in January 2023 caused by a NOTAM system failure, and a suspension following the September 11, 2001, terrorist attacks. In Chicago, the O'Hare and Midway airports had previously entered ATC Zero status due to equipment failure.

Glossary

• Federal Aviation Administration (FAA) — The Federal Aviation Administration (FAA) is a US agency that manages flights and oversees unmanned aircraft systems. It is responsible for approving commercial unmanned aerial system licenses and managing the National Airspace System.
• Air Route Traffic Control Centers — Air Route Traffic Control Centers (ARTCC) are air traffic control facilities. They are operated by employees within the Air Traffic Organization (ATO) to provide air navigation services.
• RAF Lakenheath — RAF Lakenheath is a Royal Air Force station located near the village of Lakenheath in Suffolk, England. It currently hosts United States Air Force (USAF) units and military personnel.
• Suffolk — Suffolk is a county in England. It is the location of the RAF Lakenheath base.