Flights at UK airports grounded by air traffic control ‘technical failure’ that’s cancelled 300 flights and will last for hours

Planes at most major UK airports have been grounded by an air traffic control ‘technical failure’ which has seen almost 300 flights cancelled.

Thousands of holidaymakers, including at Heathrow and Gatwick, are facing hours of delays, with disruption expected to last until at least 9pm this evening. 

More than 10 airports across the UK have reported disruption, with Heathrow, Gatwick, Manchester and Birmingham the worst affected. 

Aberdeen, Edinburgh, Glasgow, Nottingham, Bristol and London Stansted and City Airports have also announced they are impacted.

In an update this afternoon, National Air Traffic Services (NATS) said it had identified an issue with its ‘flight processing system’, adding that ‘recovery will take some time’, but said it had ‘implemented a fix’.

The organisation, which provides air traffic control services to 15 UK airports, gave no details as to the cause of the problem. 

But a spokesperson told the Daily Mail there is currently no indication the issue is due to a hack or other cyber incident. 

The air tracker found 352 flights to and from Heathrow were delayed out of its daily average of about 1,300.

Meanwhile 281 Gatwick flights were delayed out of its 850 daily average. This was 249 out of 650 for Manchester, and 101 out of 300 for Birmingham.

Ryanair said more than 65,000 of its passengers have been affected and called for ‘overpaid failure’ NATS CEO Martin Rolfe to be replaced.

COO Neal McMahon said: ‘The UK Government, the CAA and the NATS Board must stop making excuses for repeated NATS failures and appoint a new leader capable of running the UK ATC system without repeated failures. Its time for overpaid failure Martin Rolfe to go.’ 

Wizzair later joined Ryanair in its criticism of NATS, saying it was ‘extremely disappointed’ that another failure caused significant travel disruption. 

The airline continued: ‘A critical national infrastructure provider should not repeatedly bring the aviation system to a standstill. NATS is simply not fit for purpose in its current form.’

According to site FlightRadar24, the cancellations include at least 96 British Airways flights, 92 easyJet and 20 KLM.

Passengers in the UK are being urged to check in as usual but check with their individual airlines for updates. 

Some inbound flights from continental Europe are being held on the ground and disruption has also been reported in Ireland. 

One passenger who is travelling from Dublin to Malta told the Daily Mail their flight had been affected by an ‘issue in London’. 

They said: ‘Our Aer Lingus flight to Malta was due to depart at 2.20pm and we’ve had zero information from the Aer Lingus. 

‘They just keep saying an update will be provided in 15 mins – there’s an issue in London but no information regarding departure time or how long we will be delayed.’ 

Others have shared their experiences of being stuck at airports on social media. 

One person posted on X: ‘We are currently sat on Alicante tarmac going to Manchester and this is affecting us. Not just London!’ 

‘Luton airport too! We’re stranded on the actual plane,’ another added.  

Passengers are being advised to travel to the airport for their scheduled time and to check in with their airline. 

Today’s disruption comes after NATS, which is 49 per cent government-owned, suffered another major outage in August 2023 that affected more than 700,000 passengers.

More than 150 flights across Britain were also cancelled last year after a malfunction left air traffic controllers at the control centre in Swanwick, Hampshire, with only a patchy view of the airspace.

Speaking of the ongoing issue, a spokesman for NATS said: ‘We have identified that the issue was in our flight processing system. 

‘Our engineers are on site and working urgently to resume normal operations as quickly as possible. 

‘We recognise the ongoing disruption to travel, for which we sincerely apologise.’ 

They later added: ‘We have implemented a fix and our flight system is starting to recover. 

‘We are continuing to work closely with our airline and airport customers on recovery. We apologise sincerely for the disruption to people’s journeys today and they should continue to check with their airline.’

In a post on X, Transport Secretary Heidi Alexander said she was aware of the issue impacting flights and that engineers were ‘fixing it as we speak’.

She said: ‘I’m aware of a technical issue impacting flights at airports including Heathrow and Gatwick. Technicians have identified the issue and are fixing it as we speak.

‘I know this will be frustrating for passengers and I’m sorry. Please check with your airline for latest advice.’

A spokesman for Heathrow Airport added: ‘The air traffic control service is experiencing a technical issue which is impacting departing flights at UK airports. Arriving flights are not currently impacted. 

‘We are supporting our local NATS team in their efforts to resolve the issue as quickly as possible. We will provide updated information when we have it. 

‘We apologise to those disrupted and advise passengers to check with their airline for latest flight information.’

Jersey Airport said it was also affected by a technical issue with air traffic control.

In a statement the Channel Islands airport said: ‘UK air traffic control is currently experiencing issues which is impacting flights across the UK including services between Jersey and UK.

‘Passengers are advised to check the latest flight information directly with their airline.’

A spokesman for Gatwick added: ‘We are aware of a NATS technical issue that is currently affecting a number of UK airports, including London Gatwick.

‘Passengers are advised to check with their airlines for more information regarding their flights.’

Airlines have also warned passengers of delays, but stressed the situation is not under their control.

EasyJet said some of its flights are ‘unable to operate’ following the technical issue. 

It is the latest issue to affect passengers flying out of the UK, with flights at Gatwick brought to a standstill last week after a plane became stuck on the runway. 

The plane was surrounded by several fire engines and the runway was closed for around 50 minutes.

Meanwhile, in July passengers at Gatwick were left without running water due to an issue with the supply. 

Flyers were unable to flush toilets, wash their hands or refill water bottles for hours during the outage. 

Heathrow has also been affected by two grass fires this summer, which have caused delays to flights. 

One flight from San Francisco was diverted away from Heathrow towards Manchester and another from San Diego landed in Birmingham due to a blaze on September 5.

In early August, flights were disrupted after a grass fire ignited near Heathrow’s southern runway.

One hectare of grassland was destroyed by the fire as 18 inbound flights were diverted to other airports.

Are YOU affected? Email: elizabeth.haigh@dailymail.co.uk