UK air traffic control failure cancels over 1,000 flights

Sep 8, 2026

A major technical failure in the flight processing system of the UK's National Air Traffic Services (NATS) on September 8, 2026, forced the cancellation of approximately 2,000 flights, stranding hundreds of thousands of passengers. Transport Secretary Heidi Alexander ruled out a cyberattack but ordered an independent review and gave NATS CEO Martin Rolfe one week to investigate. Airline executives, including Ryanair's Michael O'Leary, strongly criticized NATS and demanded Rolfe's resignation, pointing to previous major system failures in 2023 and 2025.

Air traffic control failure

▪The UK National Air Traffic Services experienced a major system failure in its flight processing system on September 8, 2026, which halted flights and caused widespread travel disruption
▪National Air Traffic Services CEO Martin Rolfe ruled out a cyberattack as the cause of the September 8, 2026 system failure, stating the issue affected the flight data system at Swanwick

Flight cancellations nationwide

▪Ryanair cancelled 260 flights due to the September 8, 2026 outage, affecting approximately 48,000 of its passengers and causing the airline an estimated £3 million in losses
▪The air traffic control outage on September 8, 2026 resulted in the cancellation of approximately 2,000 flights across the UK over a two-day period
▪Air India and Qatar Airways warned of delays, diversions, and cancellations for flights operating to and from UK airports due to the September 8, 2026 air traffic control failure
▪British Airways cancelled or diverted 100 flights on September 8, 2026, and cancelled an additional 190 flights on September 9, 2026, affecting tens of thousands of passengers

Passenger airport experiences

▪The UK Civil Aviation Authority stated that passengers affected by the September 8, 2026 air traffic control failure were unlikely to be entitled to compensation because the outage qualified as an extraordinary circumstance
▪Passengers at UK airports faced hours-long delays, closed check-in counters, and chaotic baggage claim areas following the September 8, 2026 air traffic control failure

Government investigation demands

▪UK Transport Secretary Heidi Alexander summoned National Air Traffic Services CEO Martin Rolfe to explain the September 8, 2026 outage and gave him one week to conduct an investigation
▪The UK government holds a 49 percent stake in National Air Traffic Services, which operates as a public-private partnership
▪UK Transport Secretary Heidi Alexander announced that the Civil Aviation Authority would conduct an independent review of the September 8, 2026 outage, reporting back in six months

NATS previous outages

▪National Air Traffic Services experienced a radar-related technical issue in July 2025 that caused flight cancellations and delays at major UK airports, including Heathrow
▪Ryanair is suing National Air Traffic Services in London's High Court for more than £7 million over the August 2023 system outage
▪The September 8, 2026 system failure is the second major National Air Traffic Services outage in three years, following an August 2023 shutdown that cost airlines £100 million

Airline industry criticism

▪Ryanair CEO Michael O'Leary and Chief Operating Officer Neal McMahon called for National Air Traffic Services CEO Martin Rolfe to resign or be fired following the September 8, 2026 outage
▪Airlines UK CEO Tim Alderslade criticized the UK's regulatory framework, stating that airlines are unfairly expected to absorb the costs of disruptions caused by external entities like National Air Traffic Services

Debatable claims

▪Air traffic control outages should not exempt airlines from paying passenger compensation
▪NATS should compensate airlines for losses caused by its system outages
▪NATS Chief Executive Martin Rolfe should resign over repeated system failures