Air traffic control disruptions reported in the United Kingdom

On Monday, September 21, 2026, the British National Air Traffic Services (NATS) reported significant flight delays affecting airports across the United Kingdom. The disruptions originated from a technical issue at the Prestwick air traffic control center in Scotland.

The problems have primarily impacted flights arriving in or departing from northern regions, specifically affecting airports in Manchester, Glasgow, and Belfast. While NATS stated that airports south of Manchester remain largely unaffected, they cautioned that schedules across the north are currently subject to delays. The agency emphasized that this specific incident is unrelated to the software failure that occurred two weeks prior, which resulted in the cancellation of approximately 2,000 flights.