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UK Air Traffic Outage Linked to Software Defect

A recent UK air traffic control outage affecting hundreds of thousands of passengers was caused by a software defect. NATS operator Martin Rolfe defended his position despite airline calls for his resignation over the disruption.

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Stranded passengers gather after some departing flights were cancelled, at Heathrow Airport's Terminal 5 in London, Britain, September 8, 2026. Some departing flights at major British airports were disrupted on Tuesday after air traffic control provider NATS experienced a technical issue, with Heathrow, Gatwick, Manchester and Stansted among the airports affected by restrictions and delays.

A software defect triggered a recent air traffic control outage in the United Kingdom, causing 2,000 flight cancellations and stranding hundreds of thousands of passengers. The system failure marks the latest operational disruption for national airspace manager NATS, following a similar incident in 2023. Airlines incurred millions of pounds in costs as carriers scrambled to reposition aircraft and process refunds.