How to Get from Champassak to Siem Reap
Travel overland from Champassak to Siem Reap by bus or van. See travel times, how the Laos-Cambodia border crossing works and tips for the journey.
Contents
Leaving the quiet Mekong riverbank at Champassak for Siem Reap means swapping the pre-Angkorian ruins of Wat Phou for the great temples of Angkor. It is one long day overland, with a border crossing in the middle.
Champassak to Siem Reap by Bus and Van
There is no train, ferry or flight between the two towns. Cross-border buses and minivans run through from the Pakse area to Siem Reap, and booking platforms sell them as one ticket. Departures are in the morning, so you reach Siem Reap in the evening. The van takes from about 8 hours and the bus from about 9 hours, longer with border queues and traffic.[1]
On booking platforms, vans start at about $31 and buses at about $40 (November 2026).[1] The ticket does not include your Cambodian visa.
At the border you leave the vehicle with your luggage, clear Lao immigration, walk across and then get your Cambodian entry stamp. Staff or the driver usually guide the group, so keep your documents ready and stay close to your fellow passengers. Beyond the border the road crosses the Cambodian countryside to Siem Reap. Vehicles stop on the way for toilets and a lunch of noodle soup or stir-fry at a roadside restaurant.
Comparing Your Options
| Mode | Duration |
|---|---|
| Van | From about 8h[1] |
| Bus | From about 9h[1] |
Tips for Traveling from Champassak to Siem Reap
- Sort your visa first: Most nationalities need a Cambodian visa. Apply for the e-visa before you leave Champassak and check the rules for your passport.
- Check your passport: Make sure it is valid for several months, as immigration can turn travellers back.
- Pack snacks and water: The stretches between stops are long.
- Book a few days ahead: There are only a few morning departures, and they fill up in the high season.
- Bring a power bank: Not every vehicle has charging ports.
- Carry small US dollar bills: They are widely used in Cambodia next to the riel, while Lao kip is only useful on the Lao side.
- Dress in layers: The air conditioning can be cold even when it is hot outside.
Timetable
| Van Champassak - Siem Reap $ 43.31–44.34 11h | |
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Frequently Asked Questions
Use the booking tool on this page to compare the transport options currently available from Champassak to Siem Reap, including current prices and schedules.
The van is the cheapest option, with tickets starting at about $31 on booking platforms (November 2026).
The van, which takes from about 8 hours including the border crossing.
Plan on a full day. The van takes from about 8 hours and the bus from about 9 hours, and border queues or traffic can add more.
Most nationalities do. Apply for the Cambodian e-visa before you travel and check the requirements for your passport.
Yes. Vehicles stop at roadside restaurants and service stations for toilets and a meal.
One large bag and a small day bag are normally fine. If you carry bulky items such as a bicycle, ask the operator before you book.
Sources and background
Numbers in the text such as [1] refer to these sources.
- [1] 12Go: 12Go timetable: Pakse - Siem Reap. Retrieved November 7, 2026.
Guide prices and journey times are indicative, not live quotes. A booked package may include transfers and waiting time as well as the main journey. Check the selected offer, pickup point and current conditions before booking.