On September 9, 2026, over 1,000 flights were canceled across multiple UK airports due to a technical failure in the National Air Traffic Services (NATS) flight processing system.
Major Airports Suspend Arrivals and Delay Departures
London Heathrow Airport halted all arrivals for the remainder of the night and warned of extended delays. While departures eventually resumed, staff and aircraft disruptions led to cancellations and diversions. Gatwick Airport faced significant disruption as well, with multiple flights canceled or delayed. Other airports affected included Stansted and London City in London, as well as Manchester, Birmingham, and airports in Scotland.
Airlines Cancel Hundreds of Flights; Ryanair Affects Over 65,000 Passengers
British Airways canceled or diverted more than 100 flights, including
a notable four-hour delay of a flight to Baltimore at Heathrow, during which passengers were served meals on board. Ryanair canceled over 50 scheduled flights, impacting more than 65,000 passengers. EasyJet reported some flights could not operate and that the system failure caused delays across Europe.
Passenger Experiences Reflect Widespread Airport Chaos
Travelers reported prolonged wait times on aircraft, limited communication from airlines, and disorganized baggage claim areas. Ryanair passenger Josie Donoghue described spending three hours stuck on a plane at Gatwick before her flight to Ireland was canceled, calling airport navigation “like trying to get out of Alcatraz” and referring to the situation as “an
absolute nightmare.” At Heathrow, passengers endured chaos at baggage claim and were directed to file claims for lost luggage.
NATS Resolves Issue; Recovery Efforts Underway
NATS confirmed the technical failure originated at their Swanwick headquarters near Southampton. The company resolved the system issue and resumed normal operations while working to clear a backlog of delayed flights.
Scale of Disruption and Official Responses
Thousands of travelers experienced cancellations and delays across UK airports on September 9. A British Airways spokesperson said the incident was “entirely out of our control and incredibly frustrating for our customers and colleagues, with aircraft and crews ending up out of place,” adding, “The severity of the issue means
there will be a significant knock-on impact.” NATS emphasized efforts to restore full operations promptly.
