A significant technical issue at the UK's National Air Traffic Services (NATS) on Tuesday, September 8, 2026, caused substantial disruption to air travel, leading to the cancellation of hundreds of flights and delays affecting tens of thousands of passengers across major UK airports including Heathrow, Gatwick, Manchester, and Stansted. This incident marks the third major meltdown under the leadership of NATS CEO Martin Rolfe in four years.

Budget airlines, including Ryanair and Wizz Air, have strongly criticized NATS and its CEO, Martin Rolfe. Ryanair specifically called for Rolfe's resignation, highlighting that over 65,000 of its passengers experienced delays of up to eight hours and more than 50 of its flights were canceled due to the system failure. Ryanair’s corporate website noted that this failure comes after a "catastrophic" system collapse in August 2023, and despite a 28% increase in UK air traffic control charges since 2022, service quality has deteriorated. They criticized Rolfe, who reportedly earns over $1.4 million annually in bonuses, for repeated mismanagement.

The widespread disruption prompted Heathrow Airport to advise passengers to travel only if their flights were confirmed to be operating. The knock-on effects of the initial glitch continued into the following day, September 9, 2026, with an additional 250 flights canceled. This ongoing chaos has intensified calls for accountability and a thorough overhaul of NATS's operational systems and leadership to prevent future occurrences.