NATS

"I fear we will see a continuing failure to improve the reliability, cost efficiency, and environmental performance of air traffic control," IATA's Willie Walsh said.

NATS said that although air traffic flow restrictions have been imposed, UK airspace is not closed.

UK air navigation service provider NATS plans to establish a new back-up air traffic control tower for London’s Heathrow airport.

Flight frequencies on many routes continue to be significantly below pre-COVID-19 levels.

Airlines will be able to choose their own direct routes through parts of Scottish airspace, due to a project led by air traffic controllers at NATS Prestwick Centre.