Travelers across the United Kingdom experienced widespread disruption on Tuesday following a significant technical glitch that impacted air traffic control operations. According to data from the flight-tracking website Flightradar24, the incident resulted in the cancellation of more than 1,000 flights throughout the day.
The disruption affected numerous major transport hubs, including London Heathrow, London Gatwick, Manchester, and Birmingham. Additional flight cancellations and delays were reported at London Luton, London Stansted, Liverpool, and Edinburgh, as well as at Dublin airport in Ireland. Airports have warned that the impact of the technical failure is likely to persist for the remainder of the day.
NATS, the air traffic control operator, initially confirmed that it had identified a technical issue within its flight processing system. Engineers were dispatched to the site to address the fault. In a later update posted to social media, NATS announced that the issue had been resolved and that operations were returning to normal, adding that staff were working to clear the backlog of flights while apologizing for the inconvenience caused.
In response to the situation, Heathrow Airport confirmed on Tuesday evening that all arrivals had been suspended for the remainder of the day to prioritize the safety of passengers and staff, though departures had resumed. Meanwhile, Manchester Airport stated that while it expects to operate a full schedule on Wednesday, the terminal may be busier than normal due to the rescheduling of affected flights. Passengers are being strongly advised to verify the status of their flights with their respective airlines before traveling.
British Transport Secretary Heidi Alexander addressed the incident on X, expressing relief that NATS had managed to remedy the problem and extending her thanks to those involved in the recovery efforts. She acknowledged that a full resumption of flight schedules would take time and urged passengers to remain in contact with their airlines. Alexander further noted that she is seeking assurances that the systems supporting aviation are robust and that necessary lessons will be learned from the event.
