Air transport

Chaos at UK airports: Heathrow and Gatwick among the worst affected

The problem caused by the air traffic management system. Dublin Airport in Ireland is also affected. More than 200 flights have been cancelled so far

2' min read

Translated by AI
Versione italiana

2' min read

Translated by AI
Versione italiana

A technical fault in the flight management system of NATS, the UK’s leading air traffic control service provider, caused disruption and delays at several major UK airports on Tuesday. The airports affected included Heathrow, Gatwick, Manchester and Stansted, where departures and arrivals were subject to restrictions. In fact, the disruption also spread to Ireland, with Dublin Airport experiencing the same problems. Around 200 flights were cancelled due to the air traffic control issue in the UK, according to FlightRadar24.

EasyJet, which operates mainly from Gatwick, has stated that some of its flights are ‘unable to operate’ as a result of the technical problem affecting air traffic controllers.

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London City Airport and London Southend Airport have confirmed that they are experiencing disruptions to outbound flights. Other affected airports include Birmingham, Jersey and Cardiff.

NATS explained that it had identified the source of the problem as being within its own flight processing system. “Our engineers are on site and are working urgently to restore normal operations as quickly as possible,” the company said. NATS clarified that air traffic had not been completely suspended: flights are still departing and the airspace remains open, but a return to full operations will take time.

Heathrow Airport, the UK’s main aviation hub, has stated that it is in contact with NATS to help resolve the issue. Edinburgh Airport has also reported possible knock-on effects, whilst Dublin Airport has stated that the disruption is also affecting flights arriving at and departing from the Irish capital. Aberdeen, Glasgow, Edinburgh and Southampton airports are all experiencing some disruption.

The incident has once again brought the reliability of the UK’s air traffic control infrastructure into the spotlight. Indeed, this is not the first time that a system malfunction has had a significant impact on the country’s air transport.

In 2024, the UK Civil Aviation Authority had asked NATS to review its contingency plans following a previous failure of the automated flight plan processing system, which had occurred the previous year and caused major disruption at UK airports.

That incident had also had a significant financial impact on the airlines. Industry leaders had estimated that the total cost incurred by the airlines, including refunds and compensation to passengers, amounted to over 100 million pounds.

A further incident occurred in July last year, when a technical fault affecting the radar systems of the UK’s air traffic control network caused disruption lasting more than four hours at several major airports in London and elsewhere in the country, including Heathrow.

This latest disruption has therefore reignited the debate over the resilience of the systems that manage UK air traffic, in a sector where even a localised disruption can quickly have a knock-on effect on airports, airlines and passengers.

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For NATS, the priority now remains the full restoration of operations. However, this incident could reignite the debate on the technological investments and backup systems needed to ensure service continuity in the event of a failure.

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