Passenger train on the Hai Van coastal railway above the sea, clay model

The Reunification Express: riding Vietnam's north to south line

Short answer

The North to South line runs 1,726 km between Hanoi and Saigon, and an end to end journey takes about 30 hours. The name Reunification Express is informal: no train officially carries it. Berths are booked on the railway's own site, and the stretch over the Hai Van pass is the reason to sit up.

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The line in numbers

Figure
Length, Hanoi to Saigon 1,726 km
End to end journey About 30 hours
Track gauge 1,000 mm, metre gauge
Stations on the line 191 of Vietnam’s 278, as of 2005
Hai Van tunnels km 761, km 766, km 772

Disclosure: VietSIM sells prepaid eSIMs for Vietnam. We have no interest in how you travel, only in whether your phone works while you do.

What the name means

The trains between Hanoi and Saigon are widely called the Reunification Express, but no train officially carries the name. Departure boards show numbers, a ticket shows a number, and the staff will not recognise the English phrase. It is a useful name for a journey and a useless one at a ticket window.

What it describes is real enough: a single metre gauge line, 1,726 km long, running the whole length of the country, with 191 of Vietnam’s 278 stations strung along it.

Riding it in legs

Thirty hours in one sitting is a thing some people want to have done. Most travellers get more out of splitting the line:

  • Hue to Da Nang. Under three hours, and the finest stretch on the network.
  • Da Nang to Nha Trang. An overnight that replaces a hotel night.
  • Hanoi to Lao Cai. For Sapa, run by private carriages attached to the service.
  • Nha Trang to Saigon. A daylight run through the south’s flat farmland.

Classes, honestly

A four berth soft sleeper gives you a door that closes, a small table under the window and a bed. Six berth compartments cost less and feel it, with the upper berths short on headroom. Soft seats are fine for a daytime leg and tiring after dark. Bring a layer: the air conditioning in a sleeper is not gentle.

A four berth soft sleeper compartment with a small table under the window and a thermos on it
Four berths, a door that closes and a table under the window.

Booking

Vietnam Railways sells online through its own site, which also carries the timetable and fares. If the payment page refuses your card, Baolau covers the same journeys and accepts Visa, MasterCard, American Express, JCB and UnionPay, plus Google Pay, Apple Pay and Alipay.

Where the rails do not go, the bus does. Sapa, Da Lat, Mui Ne and Phong Nha are all bus country, and the sleeper coach is covered in sleeper buses in Vietnam.

The Hai Van stretch

Between Hue and Da Nang the line climbs onto the flank of the Hai Van pass and runs through three tunnels, at km 761, 766 and 772. Between them the track hangs above the sea with the highway far overhead. Take that leg in daylight, sit on the sea side, and put the phone away for an hour.

Mobile coverage along the corridor is good enough to work from, with gaps in the tunnels and the deeper cuttings. If you plan to do anything online on board, size the plan in how much mobile data for Vietnam and buy it in the Vietnam eSIM store.

Questions

Is there a train actually called the Reunification Express?

No. The name is used for the services on the north to south line, but no particular train carries it officially. Timetables list numbers instead, and that is what a ticket will show, which confuses people looking for a named departure board entry.

How long does the whole line take?

About 30 hours from one end to the other, across 1,726 km of metre gauge track. Most travellers never do it in one go. The line is usually ridden in legs, with Hue to Da Nang and Da Nang to Nha Trang the two that earn their place on a short itinerary.

Which berth should I book?

A four berth soft sleeper is the compartment most visitors want: a door, a small table, and beds rather than a reclining seat. Six berth compartments are cheaper and tighter. Seats work for a daylight leg of a few hours and become hard work overnight.

Where do I buy the ticket?

Vietnam Railways sells its own tickets online, with timetables and fares on the same site. Baolau is the fallback when a foreign card is refused, because it takes Visa, MasterCard, American Express, JCB and UnionPay along with Google Pay, Apple Pay and Alipay.

Is the coastal stretch worth planning around?

The Hai Van section between Hue and Da Nang is the reason most people ride at all. The line threads three tunnels in that mountain stretch, and between them the track runs along the water with the road far above. Book a daylight departure for that leg or you will sleep through it.

Sources

  1. Wikipedia: North–South railway (Vietnam)
  2. Vietnam Railways: official ticket site
  3. Baolau: trains, buses, ferries and flights
  4. Vexere: bus operators and routes in Vietnam