UK airports disruption persists
Archived — this story has rotated out of today’s deck. It is kept here in full.
The gist
A UK air traffic control failure cancelled over 1,000 flights on Tuesday, with disruption continuing Wednesday.
Tens of thousands of travelers were stranded, and questions are mounting over NATS's reliability.
Background
NATS, the UK's main air traffic control provider, said an issue in one of its flight management computer systems caused the outage. It implemented a fix and the system began recovering Tuesday evening, but delays rippled across 15 UK airports and beyond as airlines worked through a backlog. It is the second major outage in two years to affect Heathrow passengers.
How it unfolded
- Sep 8, 2026NATS reports a technical issue affecting departing flights; engineers work on it and later say a fix is implemented and the system is starting to recover.
- Sep 8, 2026More than 1,000 flights to or from UK airports are cancelled, according to Flightradar24; Heathrow suspends arrivals for the rest of the night.
- Sep 9, 2026Flights resume early Wednesday, but airports warn operations will take time to return to normal and hundreds more flights are cancelled.
Who’s saying what
- Official
- NATS said the issue was in its flight processing system, that engineers worked urgently on a fix, and that recovery 'has taken longer than we had hoped.'
- Public
- Passenger Jeanette Clement, whose Virgin Atlantic flight to New York was cancelled, said being stuck for hours with little information made an already difficult situation much worse.
- Caution
- Reuters reported that questions are mounting about the reliability of Britain's aviation systems, with pressure ramping up on NATS and its boss Martin Rolfe.
Still unverified
The exact root cause of the flight processing system failure has not been publicly detailed beyond NATS's statement; no confirmed figure for total affected passengers has been given.