Major UK Airports Suffer Hundreds of Flight Cancellations Following NATS Technical Glitch

Hundreds of departing flights from major British airports faced severe disruption on Tuesday after air traffic control provider NATS encountered a technical issue. Key hubs including Heathrow, Gatwick, Manchester, and Stansted experienced widespread cancellations and delays.

NATS released a statement confirming that a fix had been implemented and the flight system was beginning to recover, though it warned that knock-on effects would likely last for several hours. Initial statements from the provider noted that engineers were on site working urgently to resume normal operations, emphasizing that airspace remained open and flights were still departing despite the necessary recovery time.

Transport Secretary Heidi Alexander acknowledged the frustration caused to passengers and offered an apology. Meanwhile, flight tracking website Flightradar24 reported via social media that arrivals and departures were being regulated across airports in the London flight information region.

Data from flight-tracking platform FlightAware revealed that approximately 100 flights were cancelled and 367 delayed at Heathrow. At Gatwick, roughly 250 flights—accounting for nearly a third of the total—suffered delays. Edinburgh Airport posted on X to warn that operations might be affected, while Ireland's Dublin airport confirmed that incoming and outgoing flights were also experiencing disruptions. Additional delays and cancellations were reported at London's Luton Airport, Birmingham Airport, Aberdeen, and Glasgow.

Airlines scrambled to respond to the crisis. British Airways stated it was facing flight disruptions entirely out of its control and remained in touch with affected customers. EasyJet reported that the issue was triggering delays across Europe, while Ryanair, Wizz Air, and Virgin Atlantic were not immediately available for comment.

Tuesday's incident follows a history of previous disruptions. Following a 2023 automated flight plan malfunction that caused widespread airport chaos, Britain's aviation regulator stated in 2024 that NATS needed to review its contingency plans for outages. Airline executives estimated that previous disruptions cost them over £100 million ($135.49 million) in refunds and compensation. Furthermore, a radar-related technical issue in July of the previous year had similarly disrupted flights for more than four hours at Heathrow and other major London airports.