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A widespread technical problem in the UK’s air traffic control network has led to around 200 flight cancellations nationwide and significant delays at major hubs, with 249 of 650 scheduled services from Manchester Airport reported as disrupted on Tuesday.
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Nationwide disruption linked to air traffic control fault
Airports across the UK are reporting severe disruption after a fault in the national air traffic control flight-processing system limited the number of departures that could be safely managed. Publicly available live coverage describes a ripple effect across the country’s busiest hubs as schedules were cut back while technicians worked to resolve the issue.
Flight-tracking data compiled during the afternoon period indicates that around 200 flights to and from UK airports were cancelled, with industry observers warning that the total is likely to rise as the knock-on impact continues into the evening schedule.
Major airports including Heathrow, Gatwick, Manchester, Birmingham and East Midlands have all reported heavy delays and cancellations. Additional disruption is noted at London City, London Southend, Jersey, Aberdeen, Glasgow, Southampton and Belfast, according to rolling news and aviation data reports.
The UK’s air navigation service has said publicly that recovery will take time once the fault is fixed, as aircraft and crews are displaced from their planned rotations and peak-time capacity remains constrained.
Manchester sees 249 flights delayed out of 650 movements
Manchester Airport is among the worst affected hubs, with aviation data cited in multiple live reports showing 249 delayed flights out of a typical daily schedule of around 650 operations. That places Manchester alongside Heathrow and Gatwick in the top tier of disruption by volume of affected services.
The figures suggest that well over one in three flights passing through Manchester on Tuesday experienced delays beyond their planned departure or arrival times. Services to and from popular European destinations, as well as domestic links, have been particularly disrupted according to route lists published in local and national coverage.
Manchester Airport Group, which also operates Stansted and East Midlands airports, has acknowledged through public statements that flights across its network are being affected by the air traffic control issue. Passengers using these airports are being advised via airport websites and social media channels to check the latest status of their flights directly with airlines before travelling.
Live arrival and departure boards at Manchester show a dense cluster of late-running services, with some flights pushed back by several hours and a smaller number cancelled outright as airlines attempt to stabilise schedules.
Heathrow, Gatwick and Birmingham also heavily affected
The impact is being felt particularly strongly at Heathrow and Gatwick, the UK’s two largest London-area airports, where hundreds of flights have been delayed or cancelled. Flight-monitoring platforms referenced in national coverage report more than 350 delayed services at Heathrow alone out of a usual schedule of around 1,300 daily flights.
At Gatwick, data collated during the afternoon period shows 281 delayed flights out of an estimated 850 daily operations. Birmingham Airport has reported more than 100 delayed flights out of around 300 scheduled services, underlining how the technical problem is affecting airports across England’s key transport corridors.
Several outlets have published running tallies of cancellations and delays by airport, alongside route-by-route lists for London hubs. The pattern points to a broad constraint on UK departures linked to the central air traffic system fault, rather than airport-specific operational problems.
While some airports note that arriving flights are less affected than departures at certain times of day, late-running inbound services are expected to add further strain as aircraft and crew arrive out of position for subsequent rotations.
Technical issue identified, but recovery expected to be slow
According to ongoing live coverage, the UK air navigation provider has attributed the disruption to a problem within its flight-processing system and has stated that technicians have identified the underlying issue. Public updates indicate the system is being restored, but highlight that a full recovery of the network will take time.
Air traffic control restrictions introduced during the fault meant that departures were limited so that controllers could manually handle flight plans within safe workload levels. Even once systems are back online, a period of reduced capacity is expected as backlogs clear and aircraft are re-distributed across the network.
Transport-focused reporting notes that airlines are now engaged in large-scale schedule replanning, including aircraft substitutions, crew reassignments and, in some cases, proactive cancellations of later rotations to protect the following day’s timetable. Industry analysts warn that some disruption could spill into Wednesday as today’s delays cascade through overnight operations.
The episode follows previous instances of UK air traffic control technical problems that have similarly resulted in widespread disruption and prolonged recovery periods, prompting renewed scrutiny of system resilience and contingency planning.
What affected passengers can do right now
Consumer travel guidance published alongside today’s news coverage emphasises that passengers should first check their flight status directly with their airline’s app, website or text alerts before setting out for the airport. Airport live departure boards provide an additional cross-check, but airlines control the final decision on operating, delaying or cancelling a flight.
Specialist air passenger rights sites and broadcasters are also highlighting the distinction between a delay and a cancellation when it comes to support and potential compensation. Under current UK rules, airlines are generally required to offer a choice of refund or rerouting when a flight is cancelled, and to provide care such as meals and accommodation in certain circumstances, although compensation can depend on the cause of the disruption.
Given the scale of the issue affecting multiple airlines and airports, travel experts advise keeping all receipts for food, transport and accommodation, monitoring airline notifications closely, and being prepared for rebooking options to involve longer routings or next-day departures while capacity remains tight.
With hundreds of flights across the UK already cancelled or delayed and 249 Manchester services disrupted alone, passengers with flexible plans are being encouraged by public advisories to postpone nonessential travel where possible and to build in significant extra time if flying later today.
Standard: Heathrow and Gatwick flight disruption live coverage
The Independent: Flight delay recovery to take time after Nats issue
Yahoo / ITV News: Hundreds of flights cancelled due to air traffic control problems