A Verizon fiber-optic cable cut near New Brunswick, New Jersey, triggered communications failures at Philadelphia TRACON, disrupting flights at five major Northeast U.S. airports on September 21 and 22, 2026. The outage involved a primary circuit failure and accidental severing of the backup cable by construction contractors at 9:45 a.m. on Monday, forcing ground stops and flight restrictions.
Major Northeast Airports Experience Widespread Disruptions
Airports affected include Newark Liberty International, Teterboro, Philadelphia International, LaGuardia, and John F. Kennedy International. The dual communication failures left air traffic controllers without essential radar and approach control communications. The FAA imposed flight restrictions and ground stops that spread delays beyond
the directly impacted region, affecting national air travel.
Flight Delays and Cancellations Exceed Hundreds
Newark Liberty International Airport saw over 600 cancellations on September 21, making it the hardest hit among the airports. Philadelphia International reported more than 200 cancellations and upward of 400 delays the same day. LaGuardia and JFK halted arriving flights temporarily, resuming with ongoing delays. Passengers experienced flight cancellations, delays up to 150 minutes, and some flights diverted to Washington Dulles and Detroit Metropolitan Wayne County airports. The disruption caused a nationwide backlog in airline networks.
Timeline and Repair Efforts
The telecommunications outage began at approximately 9:45 a.m. Monday when contractors working near utility lines accidentally
severed Verizon’s backup fiber cable. The primary communications circuit at Philadelphia TRACON had already failed earlier that morning. The combined failure disabled air traffic control communications for a critical Northeast sector. Repairs were completed by Monday evening, September 21, but delays and cancellations continued into September 22 as airlines and airport operators worked through the backlog.
Passenger Impact and Airline Responses
The disruption caused passengers to face extended waits, long lines, and scramble to rebook and retrieve luggage. United Airlines, the busiest carrier at Newark, waived change fees and offered extra pay to crews picking up trips to ease staffing problems. American Airlines also waived
change fees and allowed customers to fly out of other airports. International flights from locations including Iceland, Egypt, Greece, Spain, France, Berlin, and Stockholm, and diplomatic delegations for the United Nations General Assembly in New York were delayed. Canadian Prime Minister Mark Carney’s arrival was delayed, causing him to miss a scheduled summit.
Transportation Secretary Sean Duffy confirmed repairs were finished Monday evening but warned that clearing delays would take time. He called for funding to modernize the aging air traffic control infrastructure. FAA Administrator Bryan Bedford explained the backup fiber failure during a transition attempt from a failed primary
circuit and emphasized the need for a budget to replace decades-old infrastructure with a modern federal enterprise network.
NJ Transit stated it is investigating the circumstances along with Verizon and the contractor responsible for the fiber cut. An NJ Transit spokesperson said, “We will continue to work closely with Verizon and the contractor as the circumstances surrounding the incident are being investigated.” Verizon attributed the fault to construction contractors, stating, “Construction contractors working in the area dug up and cut our cable. The contractors are responsible for calling for the correct markings and the actual work.”
An air traffic controller
at Philadelphia International Airport described the situation during the outage: “Yeah, man, nothing works. People are getting out, but it’s slow going.” The incident exposed vulnerabilities within the aging U.S. air traffic control communications system.
