Vietnam railways (Reunification Express Train) run these trains every day from Hanoi to Ho Chi Minh City (Saigon) and back, the track is 1,726km or 1,070 miles long. The North–South railway (Vietnamese: Đường sắt Bắc–Nam) is the principal railway line serving the country of Vietnam. It is a single-track metre gauge line connecting the capital Hanoi in the north to Ho Chi Minh City in the south, for a total length of 1,726 km (1,072 mi). Trains travelling this line are referred to as the Reunification Express (referring to the Reunification of Vietnam), although no particular train carries this name officially. The line was established during French colonial rule, and was completed over a period of nearly forty years, from 1899 to 1936. As of 2005, there were 278 stations on the Vietnamese railway network, of which 191 were located along the North–South line.

Vietnam railways (Reunification Express Train) includes all of route from North to South. The train names called SE (1 - 8) belong Reunification Express Train. SE1, SE2, SE3, SE4, SE5, SE6, SE7, SE8: These are the better trains, included air-conditioned soft sleepers (4-berth), air-conditioned hard sleepers (6-berth) and air-conditioned soft seats.