Hanoi-HCMC Southeast Asia’s busiest domestic air route 21 July 2023 bwsadmin News Travel Vietnam The two-hour Hanoi-HCMC route was the busiest domestic air route in Southeast Asia in July with 987,000 passengers, an increase of 5% against last month. Source: VNExpress International, https://e.vnexpress.net/news/travel/hanoi-hcmc-southeast-asia-s-busiest-domestic-air-route-4632365.html