United Kingdom: Over 600 Flights Cancelled Following Air Traffic Control Failure

British air traffic was severely disrupted on Tuesday following a failure affecting the flight data processing system of NATS, the provider responsible for air traffic control in the country. The incident impacted several major hubs, including Heathrow, Gatwick, Stansted, Manchester, Birmingham, and Scottish airports.

NATS stated that it had identified and then resolved the issue, assuring that safety had not been compromised. However, the return to normal remained gradual, as airlines and airports had to absorb the accumulated delays and reposition aircraft and crews.

At least 625 flights to or from the United Kingdom were cancelled during the day, according to a count by Flightradar24 reported by the Associated Press. Several hundred other connections experienced delays, with repercussions beyond British territory on several European routes.

At Heathrow, arrivals were ultimately suspended for the remainder of Tuesday, September 8, in order to manage the consequences of the incident. Departures have resumed, but the airport warned that disruptions would continue and asked passengers to check the status of their flight before traveling.

NATS under pressure after another outage

Ryanair states that more than 65,000 of its passengers have been affected, with over 50 flights canceled and delays of up to eight hours. The Irish airline has once again called for the resignation of NATS CEO Martin Rolfe. Wizz Air has also called for a reform of the British service provider.

The Civil Aviation Authority, the British regulator, has requested a full report from NATS on the incident. It must examine the circumstances of the failure as well as the measures taken to ensure the reliability and resilience of the air traffic control system.

The new incident highlights the vulnerability of infrastructure essential to air transport. A major failure of the flight planning system had already caused widespread disruptions in the United Kingdom in August 2023, subsequently leading to an independent investigation by the regulator.

European air traffic has already experienced other major disruptions this year: in January, more than 700 flights were canceled at Schiphol during a heavy snowfall event. The causes differ, but these episodes demonstrate how quickly a localized incident can disrupt connections across the continent.

European air traffic has already experienced other major disruptions this year: in January, more than 700 flights were canceled at Schiphol during a heavy snowfall event. The causes differ, but these episodes demonstrate how quickly a localized incident can disrupt connections across the continent.

Disruptions still expected

Airlines continued to adjust their evening schedules. British Airways, easyJet, KLM, and Lufthansa are among the carriers that have canceled flights, while several airports have advised travelers to only show up if their flight is confirmed.

The exact cause of the failure had not been made public immediately. Authorities and NATS described the event as a technical problem with the flight processing system, without mentioning a cyberattack.