UK air controllers say flight data sparked glitch that snarled hundreds of flights

A technical failure, not a cyberattack, caused flight delays and cancellations across the UK, according to authorities. The breakdown, which occurred on a busy travel day, stranded thousands of travelers at airports. Investigations have shown that the problem was related to flight data received by air traffic controllers, but no specific cause has been identified. The disruption is expected to take days to resolve, with British Airways being the worst affected airline.