It was followed by Jeju-Seoul of the Republic of Korea and Tokyo-Hokkaido of Japan.
The new position was established partly due to flight ticket promotion programs introduced by four domestic airlines since the outbreak of the COVID-19.
At present, Viet Nam airlines, Bamboo Airway and two low-cost airlines, Vietjet Air and Jetstar Pacific, could provide flights between Noi Bai International Airport and Tan Son Nhat Airport with nearly 270,000 seats per week, up 39% against the same period last year.
Some 6.7 million passengers flew between the two cities in 2017, making the route the seventh busiest, according to U.K. newspaper The Telegraph.
By Huong Giang