BBC News
Adam Goldsmith and Theo Leggett
21 September 2026
Airlines have criticised the UK's air traffic control system after a second technical problem in two weeks caused major disruption to UK flights
The technical problem at Prestwick in Ayrshire caused disruption at airports across Scotland, Northern Ireland and northern England, delaying dozens of flights.
Nats said a "connectivity issue" was to blame for the disruption, and that it had "nothing to do" with a separate software defect at Swanwick that led to the cancellation of 2,000 flights earlier in September...
