On September 8, 2026, a technical failure in the UK’s National Air Traffic Services (NATS) system caused the cancellation of nearly 425 flights, primarily impacting departing services across the UK and some European routes. The fault led to widespread disruption at multiple airports as flight operations were severely affected.
Affected Airports and Airlines
The failure caused operational difficulties at major UK airports including Heathrow, Stansted, London City Airport, Manchester, Birmingham, and several airports in Scotland. Airlines affected by the disruption included British Airways, EasyJet, KLM, and Lufthansa. EasyJet confirmed that some of its flights within the UK and Europe were unable to operate during
the outage.
Operational Impact and Passenger Advice
Restrictions on departing flights were imposed while NATS engineers worked urgently to resolve the problem. This caused widespread delays, cancellations, and passengers facing last-minute schedule changes. Arriving flights were not significantly impacted. Airport authorities at affected locations advised passengers to check with their airlines for updated flight statuses.
Recovery Efforts
NATS confirmed that engineers were working urgently to fix the fault affecting flight operations. Later on September 8, NATS announced that a solution had been implemented and said, “Our flight system is starting to recover.” An apology was issued to passengers and airlines for the disruption. Airlines including British Airways
and EasyJet adjusted schedules throughout the day to manage the backlog.
Cause and Investigation Status
The failure originated within the UK’s air traffic control system managed by NATS, specifically disrupting departing flight management. NATS has not revealed the precise cause or a timeline for completing a full technical investigation into the failure. Similar incidents have occurred before, including a major failure in 2023.
