A new Provincial Road 770B and upgrades to provincial roads 773 and 769 together run about 111 km.
Long Thanh sits about 40 km east of Ho Chi Minh City and is built to handle 25 million passengers a year in its first phase.
State-owned Airports Corporation of Vietnam, the investor, plans to route most of international flights to the country's south through it and to relieve the chronically overcrowded Tan Son Nhat airport in the city center.
The full project, which carries a price tag of around VND336.63 trillion ($12.8 billion), opened technically in December 2025 and is due to take commercial flights this year.
Provincial Road 769 is the one that runs directly to the airport, connecting National Highway 1 at the Dau Giay junction with National Highway 51 at the Loc An junction.
