Over 1,000 flights canceled as a UK air traffic control failure sparks travel chaos, grounding passengers at Heathrow, Gatwick, Manchester and other major airports.

More than 1,000 departures and arrivals into British airports were cancelled today, with thousands of passengers left stranded.

Departing flights faced disruptions across Britain due to a technical issue. Air traffic control provider NATS experienced a problem which affected departures. Arriving flights…