Flights across the UK are being disrupted after air traffic control provider Nats suffered a technical problem.
The company said it is limiting the number of aircraft which can fly in the “London control area”, which covers most of England and Wales.
The technical issue relates to Nats’ control centre in Swanwick, Hampshire.
ℹ️Technical issue at Swanwick
As a result of a technical issue at NATS Swanwick air traffic control centre, we are limiting the number of aircraft flying in the London control area in order to ensure safety, which is always our first priority. (1/3) pic.twitter.com/HzBYPGcq7M
— NATS (@NATS) July 30, 2025
British Airways said the problem is “affecting the vast majority of our flights”.
Gatwick airport said it is affecting all outbound flights across the UK.
Birmingham airport said “departing flights from many UK airports have been suspended”.
Several flights scheduled to arrive at UK airports are being forced to conduct holding patterns or divert elsewhere.
More than 700,000 passengers suffered disruption when flights were grounded at UK airports on August 28 2023 when Nats suffered a technical glitch while processing a flight plan.
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