Planes made 30,537 trips between the two airports in the year to February 2018, OAG Aviation said.
The figures mean an average of 84 flights per day plied the route.
The route is operated by a host of budget carriers such as Scoot, Jetstar, Air Asia and Malindo Air as well as the two country's flagship carriers Singapore Airlines and Malaysia Airlines.
In terms of passenger numbers the flight between Hong Kong and the Taiwanese capital remains the busiest with 6.5 million passengers on the route. The second busiest was Singapore-Jakarta (4.7 million people) and Singapore-Kuala Lumpur (4 million).
Edited by KK Lee, 04 May 2018 - 01:52 PM.