Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
CHITPRASONG | Bus | CPS-Vientiane-C.NO18 | CPS-Siem Reap | CheapestFastest | ||||
 | Bus | SRL Office, Rue Chanthakhoumane | SRL-Siem Reap-OFFICE | No tags |
Last refresh of the prices: Last Saturday at 9:15 AM +07.
Get from Vientiane to Siem Reap
The journey takes about 23 hours 55 minutes and with fares starting at just $73, it presents an excellent value for a comfortable ride.
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Frequently asked questions about traveling from Vientiane to Siem Reap by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Vientiane to Siem Reap?
The cheapest bus tickets from Vientiane to Siem Reap start from $73. The average price for this route is around $73. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus ride from Vientiane to Siem Reap?
The average bus trip duration from Vientiane to Siem Reap is 23h 55m, covering a distance of 329 miles (530 km). The quickest bus can get you there in 23h 55m and is operated by SRL TRANSPORT.
Which bus companies service the Vientiane to Siem Reap route?
Several major bus companies operate on this route with 1 buses available per day, including services from SRL TRANSPORT, CHITPRASONG.
What is the earliest and latest departure time for the bus from Vientiane to Siem Reap?
The earliest bus departs from Vientiane to Siem Reap at 8:00am. And the latest bus departs at 8:00pm.
What are the CO₂ emissions for the bus trip from Vientiane to Siem Reap?
A bus trip from Vientiane to Siem Reap generates an estimated 13 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Vientiane to Siem Reap was searched and found on Nov 29, 2025 with a price of $70To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Vientiane to Siem Reap, as early as possible.
You can expect to pay from $70 to $78 for a bus ticket from Vientiane to Siem Reap based on the last 2 days. You can expect to find the cheapest price for the trip at $70 which is on 2025-12-03.
Usually SRL TRANSPORT will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.
