UK airlines slam air traffic control over second glitch

A second significant air traffic control failure in the United Kingdom within a month has disrupted hundreds of flights, sharpened airline criticism of National Air Traffic Services (Nats), and renewed scrutiny of how resilient the country’s aviation infrastructure really is.

Second technical failure hits UK skies in two weeks

According to published coverage on 21 September 2026, a connectivity problem at Nats’ Prestwick control centre in Ayrshire triggered widespread disruption across Scotland, Northern Ireland, and northern England. The facility manages airspace over much of northern Britain, and the outage forced restrictions on traffic flows while controllers reverted to backup procedures.

Data from aviation analytics firm Cirium, cited in UK media reports, indicated that more than 150 flights were cancelled at UK airports on Monday, including 140 departures and 137 arrivals. EasyJet was reported as the worst affected carrier, with around 48 of its 670 scheduled departures cancelled, while British Airways saw around 13 cancellations out of 513 planned services.

Nats stated publicly that the disruption was caused by a connectivity issue at Prestwick and stressed that it was unrelated to a separate software defect at its Swanwick centre in Hampshire earlier in September. That earlier incident led to the cancellation of roughly 2,000 flights and significant knock‑on disruption for hundreds of thousands of passengers across Europe.

By late Monday, Nats reported that operations at Prestwick had been restored to full capacity, but airlines continued to warn passengers of residual delays as aircraft and crews were repositioned and schedules reset.

Airlines question Nats’ resilience and leadership

The latest disruption has intensified criticism from carriers already frustrated by the cumulative impact of repeated outages. Statements reported by outlets such as the BBC and other UK news sites show EasyJet arguing that the new incident “once again calls into question the resilience” of the air traffic control system and the robustness of its backup arrangements.

Wizz Air executives, in interviews quoted in broadcast and print coverage, described a “national confidence crisis” in Nats and called for urgent reform of how UK air traffic control is governed and overseen. Ryanair reiterated demands for the resignation of Nats chief executive Martin Rolfe, citing repeated failures to deliver a fully reliable system and effective contingency plans.

Industry body Airlines UK was also quoted as saying that passengers and airlines “deserve better” after what it described as “yet another Nats failure.” The group has previously argued that repeated outages shift substantial operational and financial risk onto carriers, which must absorb the costs of care, rebooking and lost revenue when air traffic systems falter.

Some airline leaders have used the latest incident to renew calls for a broader review of UK airspace management, arguing that repeated failures risk eroding confidence among both travellers and global aviation partners who depend on UK airspace as a key corridor for transatlantic and intra‑European flights.

Regulators and government signal closer scrutiny

Publicly available information shows that the UK Civil Aviation Authority (CAA) has already launched an independent review into the resilience of the air traffic control network following the Swanwick software failure earlier in September 2026. The CAA has indicated that findings are expected within six months and will focus on technical safeguards, backup systems and operational procedures.

Government figures have also signalled growing concern after the latest glitch. Reports indicate that Prime Minister Andy Burnham described the recurrence as a cause for “even greater concern,” while making clear that the immediate task for the transport secretary is to establish why issues have reappeared so quickly after the previous outage.

For travellers, one of the most closely watched questions is whether they will receive compensation for delays and cancellations. The CAA has said publicly that passengers affected by the Prestwick outage are unlikely to be entitled to compensation, because the disruption is expected to be classified as an “extraordinary circumstance” under UK passenger rights rules. Airlines must still provide care, such as refreshments and hotel accommodation where required, but are generally not obliged to pay fixed cash compensation when delays are caused by factors outside their direct control.

Insurance industry commentary suggests the repeat problems are also prompting closer scrutiny of how travel policies respond to air traffic control failures. Recent analysis in specialist insurance publications notes that standard policies may provide limited or no cover where outages are treated as operational disruptions rather than weather or security events, underlining the importance of travellers checking policy wording before departure.

Passenger journeys thrown into chaos

For passengers at airports from Glasgow and Edinburgh to Belfast and Manchester, the technical jargon of “connectivity issues” translated into queues, cancellations and missed connections. Coverage from UK broadcasters highlighted busy terminal scenes as travellers sought alternative flights or last‑minute accommodation while airlines worked through rebooking backlogs.

Individual accounts reported in British media described families seeing long‑planned holiday departures scrubbed minutes before boarding, and business travellers missing key meetings after early‑morning departures were cancelled. Some passengers also expressed frustration that they were still seeking reimbursement for expenses from the earlier Swanwick incident even as they found themselves stranded a second time.

Airport operators reported challenging operational conditions as they tried to manage aircraft on the ground amid limited landing and departure slots. While runways remained open and safety was not reported to be compromised, the reduced flow of aircraft through controlled airspace meant that airports had to accept lower volumes until Nats confirmed that systems were stable.

Travel agents and online booking platforms signalled a rise in customer inquiries related to rebooking and claims, though there has been no comprehensive data yet on the total number of affected passengers or the overall cost to the industry from the two incidents combined.

What the disruption means for future travel

For travellers planning trips to or through the UK in the coming weeks, the immediate advice from airlines and airports is to continue flying but remain alert to schedule changes. Public guidance across operator websites stresses the importance of checking flight status directly with airlines on the day of travel and enabling app notifications for last‑minute gate or timing adjustments.

Analysts cited in financial and aviation trade coverage note that repeated air traffic control failures can have wider implications for airline planning. Carriers may factor higher operational risk into schedule design, adding extra ground time or backup aircraft where possible, but such measures can raise costs and constrain capacity on already busy routes.

The two incidents in September have also revived debate over long‑term investment in UK air traffic infrastructure and the balance between cost efficiency and redundancy. Commentaries in business and transport publications point to the critical role Nats plays in managing both domestic routes and congested transatlantic corridors, and argue that failure at a single centre can have ripple effects across European networks.

For now, the UK’s aviation sector remains focused on restoring confidence ahead of the autumn and winter travel periods. The outcome of the CAA’s resilience review, expected within months, together with any subsequent government decisions on funding, oversight and technology upgrades, will shape whether episodes like this month’s twin glitches become a rare anomaly or a recurring feature of European air travel.