The short version
- Approximately 300 flights have been cancelled due to a technical fault in Nats flight processing systems.
- Major hubs including Heathrow and Gatwick experienced paused departures and restricted landings, affecting carriers like British Airways and Easyjet.
- The disruption extends beyond the UK, impacting airports in Ireland and preventing some international arrivals from departing their origin points.
Air travel across the United Kingdom and Ireland faced significant interruptions on Tuesday following a technical failure within the systems operated by Nats, the primary air traffic control provider for the region. The incident resulted in widespread cancellations and delays, with tracking data indicating that roughly three hundred flights were scrapped as a direct consequence of the outage. Major carriers, including British Airways and Ryanair, confirmed that their operations were severely impacted, leaving thousands of passengers stranded or facing uncertain itineraries.
The disruption originated from an issue within Nats' flight processing system, which is critical for managing departure clearances. According to statements from the organization, engineers were deployed to the site immediately to address the fault. By late afternoon British Summer Time, officials reported that systems were beginning to recover, though the full restoration of normal operations remained a work in progress. The nature of the technical problem meant that very few aircraft were able to take off during the peak hours of the incident.
Heathrow Airport experienced some of the most visible effects of the outage. Departures were initially halted around midday, creating a backlog of aircraft on the tarmac. Although traffic briefly resumed, further disruptions occurred later in the afternoon, leading to a near-complete standstill for outgoing flights. The restriction on takeoffs also forced air traffic controllers to limit landings, as airspace capacity became constrained by planes unable to depart or park.
Gatwick Airport was similarly affected, with Easyjet, the airport's largest carrier, confirming that cancellations were inevitable given the fluid nature of the situation. Passengers at Gatwick reported being held on board for extended periods while pilots waited for updates from air traffic control. One traveler described sitting on the tarmac for hours after boarding a flight to Lanzarote, with crew members providing intermittent updates every twenty minutes regarding the status of the radar and clearance systems.
The ripple effects of the technical failure extended well beyond London's major hubs. Manchester Airport issued warnings that departing flights could face delays, while East Midlands Airport also reported operational issues. In Northern Ireland, both airports in Belfast advised passengers to verify their flight statuses directly with airlines, and the City of Derry Airport confirmed it had experienced cancellations and hold-ups. Edinburgh Airport noted on social media that its operations might be impacted by the broader system failure.
International connections were also disrupted, particularly involving Irish airspace. Dublin and Cork airports in Ireland reported delays as the technical issue at Nats affected cross-border air traffic management. Because landings into the UK were restricted, some flights originating from overseas airports were prevented from departing their home bases, effectively halting travel before it even began. This secondary effect amplified the frustration for passengers who had already arrived at foreign terminals.
Transport Secretary Heidi Alexander acknowledged the situation, expressing awareness of the frustrations caused to travelers. Airlines urged passengers to check their flight statuses directly with carriers rather than relying on general airport announcements, as the situation remained dynamic. British Airways stated that the issue was entirely outside their control and advised customers to travel to airports as normal unless contacted otherwise. Ryanair indicated that affected individuals would receive notifications regarding their specific bookings.
Nats apologized for the delays and committed to providing regular updates through its official website and social media channels. The organization emphasized that it was working urgently to resume standard operations as quickly as possible. As the technical team continued to troubleshoot the flight processing system, the aviation sector braced for potential residual delays into the evening, with passengers advised to remain flexible and monitor their travel plans closely.
Sources behind this briefing
Go to the original reporting
- BBC Business↗Heathrow and Gatwick among airports hit by air traffic control problems
