Circuit Failure at Philadelphia FAA Center Halts New York-Area Flights
Hundreds of flights were cancelled across the US Northeast after technical failures at a key FAA air traffic facility in Philadelphia disrupted operations at New York-area airports.
Hundreds of flights across the northeastern United States were cancelled on Monday after technical failures at a key regional air traffic control facility in Philadelphia disrupted operations at every major airport serving the New York City area for several hours. The outage coincided with the arrival of numerous foreign leaders for the United Nations General Assembly.
According to the Federal Aviation Administration, the primary circuit feeding the Philadelphia facility failed on Monday morning. The agency then found that a backup fiber optic line had also been severed, somewhere along the route between New Brunswick and Newark, New Jersey, where construction work was under way.
The combined failures affected flights bound for Philadelphia as well as John F. Kennedy International, LaGuardia and Newark Liberty International airports. The same Philadelphia facility was responsible for widespread disruptions at Newark Liberty in the spring of 2025.
FAA administrator Brian Bedford told reporters that the agency was working to restore the connection as quickly as possible, installing a new circuit on the primary line while crews attempted to repair the backup fiber optic line. He indicated that the timeline for full restoration remained uncertain, describing the fiber break as extensive and likely to take about 13 hours to fix.
The primary circuit that failed is scheduled to be replaced as part of a broader overhaul of the country's air traffic control system.
By early afternoon, some flights had begun to resume at LaGuardia and Philadelphia, though significant delays were expected to persist through the rest of the day. Several airlines waived change fees for affected passengers.
Separately, the FAA began testing a new computer system on Monday that uses artificial intelligence to help predict scheduling conflicts and weather-related issues so that controllers can reroute traffic more efficiently. The system is initially limited to the Washington, D.C., area and does not appear to be connected to the outages.
President Donald Trump's flight departed Washington for New York as scheduled despite the disruption.