British airports began restoring flight schedules on Wednesday following a technical fault in the country's air traffic control system that left hundreds of thousands of passengers stranded, authorities said.
London airports hit hardest as disruption ripples across Europe; airlines call for overhaul of UK air traffic system
A technical issue at air traffic control provider Nats caused widespread disruption on Tuesday, marking the third major stoppage in over three years.
National Air Traffic Services apologized after a technical problem disrupted departures across the UK, with tracking service Flightradar24 reporting hundreds of cancellations.