A new report the air-travel intelligence company OAG says Singapore to Kuala Lumpur is the world's busiest international air route. March 2017 to the end February 2018, exactly 30,537 flights flew Singapore and KL. There was an average 84 flights every day - that's one flight every 17 minutes or so. The route is covered Singapore Airlines, Malaysia Airlines and a host budget airlines. The flight time Singapore and KL is just an hour. Asia has the top seven busiest international air routes, Singapore, Kuala Lumpur, Seoul and Osaka seeing the busiest traffic. New York LaGuardia to Toronto, and Dubai to Kuwait were the busiest non-Asian routes.
OAG provided more statistics how busy the skies were the year to February 2018. The busiest route if you count the number passengers was Hong Kong to Taipei. More than 6.5 million passengers flew these two cities. Singapore-Jakarta was second, 4.7 million; followed Singapore-KL, with just 4 million passengers. OAG also reported on the busiest domestic routes. The world's busiest domestic air route is Seoul and the South Korean island Jeju. In 2017, 65,000 flights covered the route, almost 180 flights per day - one every seven-and-a-half minutes. The only long-haul route the top-20 list is New York JFK to London Heathrow, which has around 38 daily flights