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A widespread air traffic control problem in the United Kingdom has triggered countrywide disruption, with reports indicating around 200 flights cancelled and some 249 services out of Manchester Airport delayed on Tuesday, 8 September 2026.
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Nationwide disruption as technical issue hits UK skies
Reports from multiple outlets describe a significant interruption to departures across the UK after a technical problem affected the flight-processing systems used by air traffic control provider Nats on Tuesday afternoon. Publicly available coverage indicates that while UK airspace remains open, flight movements are being limited, creating knock-on disruption at many of the country’s busiest hubs.
Flight-tracking data cited in news reports indicates that approximately 200 flights were cancelled across the UK in the hours after the issue emerged, with that figure expected to climb as airlines reshuffle schedules and aircraft positions. Major airports including Heathrow, Gatwick, Manchester and Birmingham are among the worst affected, with delays and cancellations building through the day as departure slots are restricted.
Nats has said via published statements that the fault has been identified and a fix implemented, but it has also warned that recovery will take time. With aircraft and crews displaced across Europe, the impact is continuing into the evening wave of departures and is likely to spill over into services scheduled for later tonight and early tomorrow.
Manchester Airport sees 249 delayed flights
Manchester, the UK’s third-busiest airport, has emerged as one of the focal points of the disruption. Flight-tracking analysis reported by several outlets shows that 249 out of an average 650 daily flights at Manchester have been delayed, highlighting the scale of the operational challenge for airlines using the northwest hub.
Live departure and arrival boards for Manchester are showing a high concentration of services marked delayed, alongside a smaller number operating close to schedule. Independent aggregation sites that monitor Manchester’s departures and arrivals also display a pattern of extended delays on both outbound and inbound flights, particularly on short-haul European routes.
Manchester Airport Group, which operates Manchester as well as Stansted and East Midlands, has said through publicly available updates that services across its network are being affected by the air traffic control issue. Travellers using these airports are being advised in online notices to allow extra time and to rely on airline communication channels for gate and timing changes.
Heathrow, Gatwick and Birmingham also heavily affected
The disruption is not confined to Manchester. Data shared by flight-monitoring services and summarised in media coverage shows that Heathrow has seen more than 350 flights delayed out of a typical 1,300 daily operations, while Gatwick has recorded delays on around 281 flights out of an expected 850 movements. Birmingham has also reported 101 delayed flights out of an estimated 300 for the day.
These figures illustrate how the knock-on effects of a single flight-processing fault can ripple across the network, particularly during busy afternoon and evening travel periods. With aircraft waiting longer for departure clearance and some rotations being cancelled altogether, schedules are becoming progressively out of sync as the day goes on.
Additional airports, including London City, Southend, Jersey, Aberdeen, Glasgow, Southampton and Belfast, are reporting some level of disruption, according to regional and national media. While the intensity of delays varies from one airport to another, the common denominator is slower throughput of departing services as the air traffic system throttles capacity to maintain safety margins.
What passengers flying today should expect
Public guidance issued through airlines and airports consistently stresses that passengers should check the latest status of their flight before travelling to the airport. Many carriers are using mobile apps, text alerts and website updates to advise customers of revised departure times, rebookings and, in some cases, cancellations.
Travellers currently at airports across the UK are encountering longer than usual waits at departure gates and on board aircraft awaiting take-off clearance. With crews and aircraft out of position, some services are being rescheduled for later this evening or the following morning, while others are being consolidated or cancelled outright as airlines work to restore normal rotations.
Passengers connecting through UK hubs from European or long-haul services may face missed connections and overnight stays, particularly where onward flights are among those delayed or cancelled. Consumer guidance published by regulators and traveller-rights organisations generally emphasises that passengers should retain boarding passes, booking confirmations and receipts for any essential expenses in case compensation or reimbursement is available under applicable air passenger regulations.
Recovery efforts and outlook for the next 24 hours
According to updates relayed in national media, Nats has implemented a technical fix and is gradually increasing the volume of traffic it can handle. However, the combination of backlogged departures, displaced crews and aircraft, and crew duty-time limits means that disruption is expected to continue for several hours even as the underlying system issue is resolved.
Airlines operating out of the most affected airports are working to prioritise certain services, including late-evening returns needed to position aircraft for tomorrow’s schedules. Some carriers are indicating through public statements that they have cancelled dozens of flights, affecting tens of thousands of customers, to stabilise operations.
For travellers due to fly in the next 24 hours, particularly from Manchester, Heathrow, Gatwick and Birmingham, the situation remains fluid. The most up-to-date information is available from airline channels and live airport boards, which are reflecting rolling changes as the UK air traffic system recovers from one of its most disruptive technical incidents of the year.
Evening Standard live coverage of UK flight disruption
The Independent report on Nats technical issue and delays