Air travel across the United States was gradually returning to normal on Saturday after a nationwide grounding of flights by the Federal Aviation Administration (FAA) triggered widespread disruption at airports, leaving thousands of passengers stranded and forcing airlines to cancel and reschedule services.
Although the FAA lifted the four-hour nationwide ground stop on Friday evening, the disruption continued into Saturday as airlines struggled to restore their schedules, reposition aircraft and arrange the availability of pilots and cabin crew. According to flight-tracking service FlightAware, more than 3,000 flights within, into and out of the US had already been cancelled by Saturday morning, following over 8,000 cancellations on Friday.
The unprecedented disruption affected major airports in cities including Boston, Washington DC, New York and Miami, where passengers faced long waiting periods, uncertainty over departure schedules and difficulties securing alternative flights. Several travellers were forced to change their travel plans, while others had to make arrangements for overnight stays.
The FAA had imposed the ground stop on Friday afternoon, citing extraordinary circumstances and safety concerns following a communications failure affecting air traffic control centres across the country. The order temporarily prevented departing aircraft from taking off, although planes that were already airborne were generally allowed to continue to their destinations.
US Transportation Secretary Sean Duffy confirmed that the country’s airspace had reopened at 8.15 pm Eastern Time on Friday, approximately four hours after the restrictions were imposed. However, he cautioned that restoring normal operations would take time because of the scale of the disruption.
Duffy said authorities had identified the technical problem that triggered the shutdown and that the air traffic control system was operational again. He attributed the failure to ageing communications infrastructure, explaining that routers in the system became overloaded with data and began transmitting inconsistent information. This prompted officials to suspend operations as a precautionary measure to ensure aviation safety.
He said the government was working to resolve the situation and restore the normal movement of aircraft.
Homeland Security Secretary Markwayne Mullin said preliminary investigations had found no indication that the communications failure was caused by a cyberattack or any deliberate malicious activity. He described it as a telecommunications outage and assured the public that there was no evidence of an external attack on the country’s aviation infrastructure.
The disruption also affected international travel. British Airways cancelled a flight to New York scheduled to depart from London’s Heathrow Airport on Friday night. Manchester Airport officials warned that three US-bound flights operated by Virgin Atlantic and scheduled for Saturday morning could also face disruption. The UK’s Civil Aviation Authority advised passengers travelling between the UK and the US to check with their respective airlines before leaving for the airport, warning that delays and cancellations could continue even after the reopening of US airspace.
The impact extended beyond commercial travel, with several sporting events also affected. A college football match between Mississippi and Oklahoma was rescheduled for Sunday, while a men’s college basketball fixture between the University of North Carolina at Greensboro and Cornell University was postponed because of travel difficulties.
The incident has once again raised questions about the condition of America’s ageing air traffic control infrastructure and the need for its modernisation. During a White House briefing, Duffy and Mullin urged Congress to provide additional funding for a complete overhaul of the country’s air traffic control system.
The FAA and the White House have sought another $30.1 billion from Congress to address infrastructure-related issues. Congress had already approved $12.5 billion last year to upgrade the agency’s ageing communications network.
The FAA manages more than 44,000 flights taking off from airports across the country every day with the assistance of over 14,000 air traffic controllers. The scale of the disruption highlighted the vulnerability of the country’s aviation network when critical communication systems experience technical failures.
This was the third time in this century that the FAA had ordered a nationwide grounding of departing flights. The first such shutdown followed the September 11, 2001, terrorist attacks, when US airspace was closed for security reasons. The second occurred in January 2023, when a malfunction in the pilot notification system forced the agency to temporarily suspend domestic departures.
Officials said their immediate priority was to restore normal flight operations while ensuring passenger safety. However, the disruption served as a reminder that lifting restrictions does not automatically resolve the problems created by a large-scale aviation shutdown, as airlines still need time to bring aircraft, crew members and passengers back into their scheduled operations.
