New Delhi, Nov. 15 -- Air India has restored non-stop flight operations on all four routes connecting Delhi and Mumbai with New York, reducing journey times by up to five hours following the easing of airspace restrictions that had forced the airline to introduce technical refuelling stops.

Journeys that had extended to around 22 hours due to enroute stops in Rome will now take approximately 17 hours, improving connectivity and convenience for passengers travelling between India and the United States, the airline said on Sunday.

Earlier this year, the closure of Pakistan's airspace to Indian airlines, followed by restrictions across parts of the Middle East amid regional conflict, had significantly affected flight routes between India a...