THE SHORT VERSION
Bangkok to Siem Reap at a glance.
- From
- Bangkok กรุงเทพมหานคร
- To
- Siem Reap សៀមរាប
- Road distance
- About 427 km
- Straight line
- 366 km
- Car time, no stops
- ~5 h buses take longer
- Return route
- Siem Reap to Bangkok →
- Border
- Thailand → Cambodia. Passport and visa needed
THE DETAILS THAT MAKE A DIFFERENCE
Right place. Right bus. Better start.
Leaving Bangkok
Bangkok is Thailand's capital and its main long-distance bus hub, with separate terminals for the north and north-east, the east, and the south. International buses to Cambodia and Laos also start here.
- Mo Chit (Northern) Bus Terminal
Routes to the north and north-east, and many international buses. - Ekkamai (Eastern) Bus Terminal
Routes to the east coast, such as Pattaya and Trat. - Southern Bus Terminal (Sai Tai Mai)
Routes to the south and west.
Arriving in Siem Reap
From the out-of-town station, take a tuk-tuk into the centre. If you arrive from the west, you can sometimes get off in town before the station.
- Siem Reap bus station and company offices
Many buses use an out-of-town station east of the centre; some companies use their own offices.
Keep the essentials offline
Save your ticket, the exact meeting point and the operator's phone number before you set off. Follow the check-in time on your confirmation.
- Journeys to Phnom Penh vary a lot by company. Premium operators make fewer stops.
KEEP GOING
From Siem Reap, the road continues.
Other ways to reach Siem Reap
More buses from Bangkok
USEFUL FOR THIS TRIP
Sort the small things before you go.
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GOOD QUESTIONS
Before you take your seat.
How far is Bangkok from Siem Reap by road?+
About 427 km by road (366 km in a straight line). Distance is an OpenStreetMap routing estimate, not an operator figure.
How long does the bus from Bangkok to Siem Reap take?+
We don't publish timetables. As a guide, the drive takes roughly 5 h by car without stops; bus journeys are usually longer. Check the duration of your chosen departure on 12Go before booking.
Where does the bus leave from in Bangkok?+
It depends on the operator. Main options in Bangkok include Mo Chit (Northern) Bus Terminal, Ekkamai (Eastern) Bus Terminal, Southern Bus Terminal (Sai Tai Mai), and many tourist companies collect from offices or hotels. Your ticket shows the exact boarding point.
Is there a bus back from Siem Reap to Bangkok?+
Yes, 12Go also lists services in the opposite direction. See our Siem Reap to Bangkok guide.
Where does the bus from Bangkok arrive in Siem Reap?+
It depends on the operator. In Siem Reap, services use Siem Reap bus station and company offices. From the out-of-town station, take a tuk-tuk into the centre. If you arrive from the west, you can sometimes get off in town before the station.
How do I get from the bus stop to the centre of Siem Reap?+
From the out-of-town station, take a tuk-tuk into the centre. If you arrive from the west, you can sometimes get off in town before the station.
What kind of bus runs from Bangkok to Siem Reap?+
It varies by operator and departure. Routes in this region are served by a mix of sleeper buses, seated coaches and smaller limousine vans. Check the vehicle type, seat layout and luggage allowance for your departure on 12Go before you book.
Can I book the Bangkok to Siem Reap bus online?+
Yes. 12Go lists departures on this route. You choose a date, compare operators and pay online, and the provider issues the ticket. BusConnects doesn't sell tickets itself.
Where can I go next from Siem Reap by bus?+
Direct buses from Siem Reap include Poipet, Battambang, Phnom Penh, Trat, Pakse and more. See all connections on our Siem Reap bus page.
Is the border between Thailand and Cambodia open?+
Land crossings between Thailand and Cambodia were suspended during the 2025 border dispute. Check the current status with official sources and confirm with the bus operator that the service is running before you book.
Do I need a visa to take the bus from Bangkok to Siem Reap?+
This journey crosses from Thailand into Cambodia. Check the current entry and visa rules for your nationality before you travel, and keep your passport with you on the bus.
FOLLOW THE INFORMATION
Clear sources. Better decisions.
Route listed in 12Go's public route index (checked 2026-10-09). Station information reviewed 2026-10-09. Distance: OpenStreetMap data via OSRM (approximate driving distance). Listings change and are not live inventory. Confirm the departure, pickup, price and conditions before paying.
12Go: Bangkok to Siem Reap bus route listing ↗Wikivoyage: Bangkok (Get in) ↗Wikivoyage: Siem Reap (Get in) ↗How BusConnects uses sources →