National Air Traffic Services (NATS) faced a second major system failure on 21 September 2026, disrupting air traffic control across Scotland, Northern Ireland, and northern England. The outage, originating from a technical issue at NATS’s Prestwick control centre in Scotland, led to the cancellation of 227 flights by late afternoon.
Manchester, Edinburgh, and Belfast airports were among the key hubs impacted by the failure. Ryanair reported more than 25,000 passengers affected by the disruption. Airlines including British Airways, easyJet, and Jet2 were also disrupted, dealing with operational challenges such as stranded aircraft, crew hour limits, and lost airport slots.
This
latest incident is distinct from a separate NATS system failure on 8 September 2026, when nearly 2,100 flights were cancelled. On that day, about 1,750 cancellations occurred, with British Airways alone cancelling almost 550 flights affecting more than 85,000 customers. Heathrow Airport was significantly affected in the earlier outage.
NATS confirmed the 21 September failure was unrelated to the software defect initially identified in the 8 September incident. The UK Civil Aviation Authority (CAA) indicated the second disruption is likely to qualify as “extraordinary circumstances”, which affects passenger entitlement to statutory compensation. Transport Secretary Heidi Alexander had already instructed an
independent CAA review following the 8 September failure.
Flight cancellations led to travel itinerary disruptions extending beyond flights, impacting hotel bookings, transfers, cruises, and tours. Airlines were forced to reconstruct schedules and secure alternative seats for displaced passengers. Under the “extraordinary circumstances” classification, carriers remain obligated to provide rerouting and care for affected customers, although compensation claims under the EU regulation are generally excluded.
Industry response included Ryanair calling for the resignation of NATS CEO Martin Rolfe. easyJet raised concerns about the UK air traffic control system’s resilience after two failures within two weeks. These events place focus on evaluating
NATS’s redundancy, technology infrastructure, and contingency planning to restore confidence in Britain’s aviation network.
