UK Flight Chaos Deepens as Airlines Demand Answers After Second NATS Glitch

Airlines are demanding urgent action from the UK government after a second technical failure at the country’s air traffic control provider caused fresh delays and cancellations across parts of Britain.

The latest disruption began on Monday at NATS’s Prestwick control centre in Scotland, affecting flights across Scotland, Northern Ireland and northern England. NATS said engineers fixed the problem by late morning, but airports warned that delays could continue because of the knock-on effects across the aviation network.

At least 200 flights were cancelled, according to aviation data, while airports including Edinburgh, Glasgow, Belfast and Manchester reported significant disruption. The problems also affected flights travelling through Scottish airspace and some services between the UK and Ireland.

The latest incident has triggered particularly strong criticism because it comes less than two weeks after a separate NATS software failure caused more than 2,000 flight cancellations and disrupted hundreds of thousands of passengers. NATS says the two incidents were unrelated. Its preliminary report found that the earlier outage was caused by a software defect affecting its flight-data system.

Airlines say repeated failures are now raising questions about the reliability of the UK’s critical aviation infrastructure. easyJet said the latest incident once again called the resilience of NATS’s systems into question, while Jet2 called for action, accountability and stronger safeguards.

Ryanair went further, calling for NATS chief executive Martin Rolfe to resign. The airline said passengers should not continue to face repeated disruption because of system failures and inadequate backup procedures. Wizz Air also called for urgent reform and questioned whether the organisation’s current leadership had the confidence of the industry.

Transport Secretary Heidi Alexander said engineers had resolved Monday’s problem but acknowledged that further delays could remain while the system returned to normal. The government is already facing pressure to establish whether lessons from the earlier failure were properly acted upon.

NATS insists that safety remains its priority and says the latest incident was not connected to the September 8 software failure. But with two major technical problems occurring within weeks, the focus is increasingly shifting from individual faults to the resilience of the wider system.

For passengers, the immediate concern is whether their flights will operate as scheduled. For airlines and the government, the bigger question is whether the UK’s air traffic control infrastructure can withstand another major failure without causing another wave of cancellations across the country.