THE SHORT VERSION
Sihanoukville to Siem Reap at a glance.
- From
- Sihanoukville ក្រុងព្រះសីហនុ
- To
- Siem Reap សៀមរាប
- Road distance
- About 511 km
- Straight line
- 307 km
- Car time, no stops
- ~6 h 15 min buses take longer
- Return route
- Siem Reap to Sihanoukville →
THE DETAILS THAT MAKE A DIFFERENCE
Right place. Right bus. Better start.
Leaving Sihanoukville
Sihanoukville is Cambodia's main port and the jumping-off point for Koh Rong. Frequent buses run from Phnom Penh, some using the expressway, plus longer routes from Siem Reap and Ho Chi Minh City.
- Company offices and bus stations
Arrival points vary by operator.
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 Sihanoukville
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 Sihanoukville from Siem Reap by road?+
About 511 km by road (307 km in a straight line). Distance is an OpenStreetMap routing estimate, not an operator figure.
How long does the bus from Sihanoukville to Siem Reap take?+
We don't publish timetables. As a guide, the drive takes roughly 6 h 15 min 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 Sihanoukville?+
It depends on the operator. Main options in Sihanoukville include Company offices and bus stations, 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 Sihanoukville?+
Yes, 12Go also lists services in the opposite direction. See our Siem Reap to Sihanoukville guide.
Where does the bus from Sihanoukville 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 Sihanoukville 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 Sihanoukville 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, Bangkok and more. See all connections on our Siem Reap bus page.
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: Sihanoukville to Siem Reap bus route listing ↗Wikivoyage: Sihanoukville (Get in) ↗Wikivoyage: Siem Reap (Get in) ↗How BusConnects uses sources →