FAA Resolves Telecom Outage After Nearly 7,000 US Flights Were Delayed or Canceled, Northeast Airports Resume Operations Following Hours of Disruption

The Federal Aviation Administration (FAA) lifted major Northeast ground stops Monday after crews repaired telecommunications lines that had snarled U.S. air travel for hours. FlightAware counted about 7,000 delayed or canceled flights, including roughly 1,400 at the three major New York-area airports, while the disruption diverted more than 100 flights.

Failed Circuit Triggers Widespread Northeast Ground Stops

According to a Reuters report, the disruption began around 9:45 a.m. ET after the primary communications circuit at the FAA’s Philadelphia Terminal Radar Approach Control facility failed. When the system tried to switch connections, officials discovered a severed backup fiber-optic line in New Jersey, disrupting radar and communications links used by controllers.

The FAA halted arrivals at Newark Liberty, John F. Kennedy, LaGuardia and Philadelphia, while Boston stopped accepting flights as spillover traffic mounted. Newark saw no commercial landings for nearly eight hours, and airlines canceled more than 600 flights there. Earlier Philadelphia-area communications failures had already pushed the FAA to test SpaceX’s Starlink connectivity at multiple facilities.

Transportation Secretary Sean Duffy initially wrote on X that an Amtrak construction crew had cut the line. Amtrak denied responsibility. New Jersey Transit said a crew working near New Brunswick had been digging about 10 feet from utility markings and was investigating whether Verizon or the contractor had marked the site incorrectly.

UPDATE: The telecom lines have been repaired, and all airport operations in the Northeast are resuming.

It will take some time to clear all existing delays, so please check with your airline for the latest information. https://t.co/cqFWKQr0ar

— Secretary Sean Duffy (@SecDuffy) September 21, 2026

Repairs Restore Flights As Delays Linger

Late Monday, Duffy posted, saying, "The telecom lines have been repaired, and all airport operations in the Northeast are resuming." He warned that clearing existing delays would take time and urged travelers to check with airlines. FAA advisories later showed the agency transitioning Newark and Philadelphia from ground stops to ground-delay programs as traffic recovered.

FAA Administrator Bryan Bedford apologized for the disruption, saying, "The timing is absolutely horrible," while stressing that safety came first.

Outage Renews Pressure To Modernize ATC

The outage renewed scrutiny of the aging air traffic control network. Congress approved $12.5 billion last year for modernization, while Duffy said another $17.5 billion is needed. He has previously touted work to retire legacy air-traffic technology, while the administration has also replaced the older NOTAM system.

On Monday, the Department of Transportation unveiled its AI-supported SMART platform, which combines 200 data streams to help aviation specialists anticipate congestion, weather and routing problems.

Photo courtesy: Chad Robertson Media / Shutterstock.com