Flights at JFK, LaGuardia, and Newark delayed and canceled after nationwide ground stop

Key Points:

• A nationwide ground stop led to nearly 2,000 flight cancellations across the U.S. on Saturday, severely impacting New York area airports including Newark, JFK, and LaGuardia, with cancellation rates of 15-21% at these hubs.
• The Federal Aviation Administration (FAA) attributed the disruption to a technical failure during routine maintenance, where a faulty router caused communication issues and radar disruptions, but ruled out cyberattacks or AI involvement.
• Transportation Secretary Sean Duffy explained the problem stemmed from switching telecommunications from copper wire to fiber optics, which caused system flooding and forced a safety-related shutdown of airspace.
• New York Governor Kathy Hochul criticized Duffy's handling of the crisis, calling for his resignation and urging Congress to investigate the FAA's repeated aviation system failures ahead of the holiday travel season.
• Major airlines have issued travel waivers allowing passengers to change or rebook flights without fees, as operations work to recover before Thanksgiving, marking the first nationwide ground stop since January 2023 and the first since 9/11 prior to that.