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Second UK air-traffic control failure in two weeks grounds hundreds of flights

Sep 21, 2026
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Second UK air-traffic control failure in two weeks grounds hundreds of flights
British business travellers woke on Monday 21 September to a grim sense of déjà-vu. Shortly after 09:00, National Air Traffic Services (NATS) confirmed that a “connectivity issue” at its Prestwick control centre in Scotland meant flow-rates had to be drastically reduced for airspace covering Scotland, Northern Ireland and large parts of northern England. Although the fault was fixed within three hours, capacity restrictions rippled through the network for the rest of the day, forcing airlines to cancel or delay more than 220 flights by late afternoon and leaving terminals at Manchester, Edinburgh and Belfast International visibly overcrowded. Airlines UK, the industry body, renewed calls for an independent review into NATS’ resilience after a separate software defect on 8 September paralysed UK airspace and triggered more than 2,000 cancellations. Business reaction was swift. EasyJet and Loganair said they would give priority re-booking to corporate travellers and time-critical freight, while British Airways warned that crew-rostering problems could continue into Tuesday’s morning schedule. Global mobility managers were advised to reroute via London or continental hubs where possible and to expect higher short-haul fares for the rest of the week as airlines try to recover displaced aircraft and crew. Travel-management company FCM said enquiry volumes from UK-based multinationals were “triple the normal Monday level” by lunchtime. The disruption comes at a delicate moment for the UK’s reputation as a reliable hub. Passenger numbers have finally returned to pre-pandemic levels, yet industry bodies warn that a pattern of repeated technical failures could push lucrative long-haul transfer traffic towards rival hubs in Paris, Amsterdam and Dubai. Trade groups representing inward-investment projects noted that senior executives flying in for site visits were once again stranded, undermining government messaging that Britain is “open for business”. For travellers already on the move, the practical advice is clear: check flight status continuously, retain all receipts for meals and hotels, and talk to employers about flexible remote-working options if trips are postponed. Although airlines are obliged under UK 261 rules to provide care and assistance, re-routing rights depend on seat availability. Those with critical meetings this week may find rail or car travel faster for domestic legs, particularly between Scotland and England. While NATS insists there is “no link” between today’s outage and the 8 September software fault, the Civil Aviation Authority is expected to convene carriers and the service provider later this week to discuss contingency planning. For globally mobile staff and their employers, today’s incident reinforces the need for robust travel risk management—and for booking channels that can pivot quickly when Britain’s skies go unexpectedly quiet.
Source: The Guardian

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