OverlandSEA

Rail-first journey planning across Southeast Asia

Ho Chi Minh City to Bangkok overland

Two frontiers, no through train, and a week if you do it properly.

7 legs · 3 days · 2 borders · about $101 all in

Open this route in the planner Change the pace, the beds or the passport and the numbers follow.

Pragmatic routing

Ho Chi Minh City Bangkok overland

3days
7legs
2borders
$101all in
6h 30mon rails
6hat sea
9h 54mby road

Ho Chi Minh City to Bangkok is a rail journey for part of its length and an honest slog for the rest: 7 legs (2 on rails, 1 by sea, 4 by road) across 3 countries, with 2 frontiers in between. The one to watch: Phnom Penh to Siem Reap is not a service we can stand behind. It is possible, and that is about the strongest thing to say for it. If the point is the journey, ask for a different pair of endpoints.

Stations that catch people out

  • Siem Reap Angkor has no railway. The nearest railhead is Sisophon, about two hours away by road.
  • Hua Lamphong Now mostly local services, but some eastern trains (Aranyaprathet) still start here.
  • Krung Thep Aphiwat Bangkok's long-distance terminal since 2023 — not the old Hua Lamphong. Confirm which terminal your specific train uses.

The route

Durations are typical scheduled running times, not departures, and the figure under each service is how often it runs — the number that decides whether a missed connection costs you an hour or a day. Where a last departure is shown it is the one worth setting an alarm for. No planner in this region can give you a departure time you should trust: the operators publish nothing in common. Take these legs to the booking sites below and read the real clock there.

Leg & operatorTimeFare
1 Sài Gòn Phnom Penh Giant Ibis Reported Giant Ibis / Mekong Express coach 4–6 · morning and overnight departures No railway exists on this corridor and none is under construction. This is a bus, and calling it anything else would be dishonest. Book with Giant Ibisgiantibis.com 7h $15
Change at Phnom Penh allow 4 h minimum Onward ferry reached by road transfer
2 Phnom Penh Siem Reap Tonlé Sap boat Verify Tonlé Sap fast boat 1 a day · one departure in the morning, and only when the lake is high last 07:30 Only runs when the lake is high, roughly August to March, and it is a hot crowded six hours. People take it for the floating villages, not the comfort. No bookable site of its own — try 12Go12go.asia 6h $35
Change at Siem Reap allow 90 min minimum Same terminal, different operators — no through ticketing, no held connection
3 Siem Reap Sisophon Local transfer Reported Bus / shared taxi on demand · taxis, tuk-tuks and songthaews wait at the station; nothing to time Pay on the spot 2h $6
Change at Sisophon allow 90 min minimum Same station, different operators — no through ticketing, no held connection
4 Sisophon Poipet Royal Railway Cambodia Verify Royal Railway northern line 0–2 · selected days only — confirm the train runs on your date before anything else Verify the train runs at all on your date — frequency is often weekends plus selected days. Book with Royalroyal-railway.com 1h $1.5
Change at Poipet allow 4 h minimum International border crossed on foot
5 Poipet Aranyaprathet Local transfer Structural Tuk-tuk / on foot through the border complex on demand · taxis, tuk-tuks and songthaews wait at the station; nothing to time Pay on the spot 30m $2
Change at Aranyaprathet allow 4 h minimum International border crossed on foot
6 Aranyaprathet Hua Lamphong State Railway of Thailand Reported Ordinary 275/2793rd class fan 2 a day · one each way, morning and afternoon — miss it and it is a bus last 13:00 via Chachoengsao Book with SRTdticket.railway.co.th 5h 30m $2
Change at Hua Lamphong allow 30 min minimum Step off and walk to the connecting transport
7 Hua Lamphong Krung Thep Aphiwat Urban metro Structural MRT Blue Line, 2 stops every few minutes · roughly 06:00 to midnight Pay on the spot 24m $1

Day by day

Shape, not a timetable. This is built from running times, the connection buffers above and your chosen pace — it deliberately states no departure time, because none of these operators publish one this page could stand behind. Use it to decide how many nights to book and where; use the operator sites for the clock.

Day 1 11h moving
  • Ho Chi Minh City Phnom Penh Giant Ibis / Mekong Express coach 7h
Night in Phnom Penh
Day 2 16h moving
  • Phnom Penh Siem Reap Tonlé Sap fast boat 6h
  • Siem Reap Sisophon Bus / shared taxi 2h
  • Sisophon Poipet Royal Railway northern line 1h
Night in Poipet
Day 3 10h 54m moving
  • Poipet Aranyaprathet Tuk-tuk / on foot through the border complex 30m
  • Aranyaprathet Bangkok Ordinary 275/279 5h 30m
  • Hua Lamphong Krung Thep Aphiwat MRT Blue Line, 2 stops 24m
Arrive

Where you sleep

Priced where the journey actually stops, not averaged across the region — the difference between a night in Siem Reap and a night in Singapore is a factor of five, and it is worth seeing before you book. Figures are indicative low-season rates for a room booked a week or two out; the totals below use the simple private room band.

  • Phnom Penh night of day 1 $20
    $7hostel bed$20simple private room$48good mid-range hotel
  • Poipet night of day 2 $18
    $8hostel bed$18simple private room$35good mid-range hotel

    A casino border town. If you can reach Battambang or Sisophon instead, do — it is a better night in every way.

Border crossings

Itineraries die at frontiers, not on track. Never plan one of these without checking the current position for your own passport.

Bavet ↔ Moc Bai

Cambodia ↔ Vietnam
Where
Road border — the coach handles the paperwork
On the train?
Bus stops, everyone off and back on
Luggage
Yes
Visa
Vietnamese e-visa should be obtained in advance — land borders do not reliably issue on arrival.
Cash on the far side
Vietnamese dong for onward transport.
Time cost
About 90 minutes of formalities

The trap. There is no railway here and no prospect of one. Reputable operators (Giant Ibis, Mekong Express) handle the formalities as a group and are worth the small premium over local buses.

Aranyaprathet ↔ Poipet

Thailand ↔ Cambodia
Where
Border complex between the two railheads, crossed on foot or by short tuk-tuk
On the train?
No — SRT terminates at Aranyaprathet, Royal Railway starts at Poipet
Luggage
Yes, carried across
Visa
Get the Cambodian e-visa in advance. It removes most of the friction and most of the scam surface.
Cash on the far side
US dollars in small notes — Cambodia runs on them, and border ATMs are unreliable.
Time cost
About 180 minutes of formalities

The trap. The region's most scam-prone crossing: fake "visa offices" positioned before the real one, inflated e-visa fees, invented "processing" charges. Use only the official immigration building and know the correct official fee before you arrive. Budget 2–3 hours end to end, more at weekends.

Verify. Verify whether a Royal Railway train runs at all on your arrival day, or plan a night in Poipet or Battambang.

Where this breaks

Ranked by what actually ends trips, not by probability. A missed last connection costs a day and an unplanned hotel; a missed afternoon connection costs an afternoon.

  1. caution

    Phnom Penh to Siem Reap is not a service we can stand behind

    Only runs when the lake is high, roughly August to March, and it is a hot crowded six hours. People take it for the floating villages, not the comfort.

    What to do. Verify it is running on your date before you build the rest of the itinerary around it.

  2. caution

    Sisophon to Poipet is not a service we can stand behind

    Verify the train runs at all on your date — frequency is often weekends plus selected days.

    What to do. Verify it is running on your date before you build the rest of the itinerary around it.

  3. caution

    Aranyaprathet ↔ Poipet has a moving part

    Verify whether a Royal Railway train runs at all on your arrival day, or plan a night in Poipet or Battambang.

    What to do. Confirm the current position before you book anything that depends on it.

  4. caution

    Phnom Penh needs 4 hours, not a connection

    Onward ferry reached by road transfer. A gap smaller than this is not a connection — it is a missed train with a plausible-looking timetable behind it.

    What to do. Plan an overnight stop here rather than trying to make it in one day.

  5. caution

    Poipet needs 4 hours, not a connection

    International border crossed on foot. A gap smaller than this is not a connection — it is a missed train with a plausible-looking timetable behind it.

    What to do. Plan an overnight stop here rather than trying to make it in one day.

  6. caution

    Aranyaprathet needs 4 hours, not a connection

    International border crossed on foot. A gap smaller than this is not a connection — it is a missed train with a plausible-looking timetable behind it.

    What to do. Plan an overnight stop here rather than trying to make it in one day.

  7. note

    The Phnom Penh – Siem Reap boat is weather-dependent

    Ferries are cancelled rather than delayed, and a cancellation costs a day rather than an afternoon.

    What to do. Never make this crossing the only path to a fixed commitment. Leave a slack day between it and any flight home.

Booking sequence

Book in order of scarcity times window length, not in the order you travel. The shortest leg on the whole spine sells out first.

  1. 1

    State Railway of Thailand

    ~90 days

    Sleepers on trains 9/10 and the southern overnights sell out first.

    The official e-ticket site. Foreign cards fail on it fairly often, and an aggregator is the usual fallback when they do.

    Book with SRTdticket.railway.co.th
  2. 2

    Royal Railway Cambodia

    Limited and short

    Verify the train runs at all on your date before anything else.

    Schedule changes are announced informally, often on Facebook rather than the site. Confirm the train runs on your date before you plan anything around it.

    Book with Royalroyal-railway.com
  3. 3

    Sea legs

    Mostly turn-up-and-go

    Langkawi and Samui routes are worth pre-booking in season, the Mekong slow boat the day before you sail, and the Philippine RORO crossings not at all — they are grounded or they are running.

  4. 4

    Road legs

    Walk-up, except the long coaches

    The Vientiane–Hanoi sleeper coach and the Sumatra runs are worth a day or two ahead.

  5. Everything else on this route, in no particular hurry:

  6. ·

    Giant Ibis

    Handles the border formalities as a group and is worth the small premium over the local buses.

    Book with Giant Ibisgiantibis.com
  7. ·

    Local transfer

    Taxi, tuk-tuk, songthaew or minivan at the station. Agree the fare before you get in.

    Pay on the spot
  8. ·

    Tonlé Sap boat

    Sold through guesthouses and aggregators. Only runs when the lake is high, roughly August to March.

    No bookable site of its own — try 12Go12go.asia
  9. ·

    Urban metro

    Contactless or a stored-value card at the station. Nothing to plan.

    Pay on the spot

Where an operator cannot be booked from abroad — the Laos–China Railway above all — an aggregator is the practical route in. They add a fee, and some sell tickets they do not yet hold and buy them when inventory opens, which is a genuine cancellation risk on a scarce sleeper. Prefer the operator wherever the operator actually works, which is most of the time.

No affiliate links on transport. Every booking link above goes straight to the operator or aggregator and earns this project nothing. The operator's own site is listed first because it is usually cheaper and always more reliable, not because of what it pays — that ordering is the most load-bearing judgement on this page and it is not for sale. Booking URLs were last reviewed 2026-07 and are not machine-checked — if one is dead, search the operator name rather than trusting a reseller that ranks well.

Where it does earn. The hotel links in “Where you sleep” and the insurance link below pay a commission, at no extra cost to you. They are marked as paid links. Nothing about them changes a route, a price, or the order of anything: no hotel is recommended over another and no leg is routed differently because of them.

Costs

Transport, 7 legs$63
Accommodation, 2 nights — Phnom Penh $20, Poipet $18$38
Total$101

Against flying

3 days, $101, 7 legs versus a flight of roughly 1h 41m gate to gate at somewhere around $56–116. That fare band is estimated from the 747 km great-circle distance, not from live inventory — check it.

The plane wins on time and often on money. People take this route because the overland journey is the thing they want, not because it is efficient. If that is not you, fly — and there is no shame in the sleeper one way and the plane home.

If you have more time

Where the slow-travel value actually is — the detours that turn a transit into a trip.

  • Angkor, from Sisophon

    +2 nights, ~$12

    Two hours by road from the railhead at Sisophon. Angkor has no railway and never will, so this road leg is the price of the single best reason to be in Cambodia.

  • Take the Mekong to Phnom Penh instead of the bus

    +1 night, ~$35

    Coach to Châu Đốc, then a river boat up the Mekong with immigration on the riverbank at Vĩnh Xương. It is slower and dearer than the direct coach, and it is the only Vietnam–Cambodia crossing that is not a road.

Photography

Network reviewed 2026-07. 2 legs on this route are marked Verify — those are the ones to confirm first. Cross-check anything time-critical against the operator and against Seat61 before you book. Fares are indicative.

Plan your own version of this route