We were trying to get from Siem Reap to Bangkok overland and we looked at trains on seat61 and we found very little information online about the bus transport.
Getting Info / Booking
Most guesthouses, hotels and hostels will provide booking on buses for guest but they provided very little information on who the provider would be so we decided to goto the offices directly and analyze for ourselves. There are also a ton of travel agents in downtown Siem Reap that seem to offer tickets for the buses.
After spending a half a day trying to figure this out we ended up buying a ticket from Two Seasons Travel which seemed like the most trustworthy. The tickets were approximately $15 per person. They sold us a ticket on the Hang Tep bus company which had little information about it on the web except for a few notes that said they often oversell tickets.
The journey is basically from Siem Reap to Poipet (the border) then to Bangkok.
Reflection
Overall, this was the worst journey we had in Southeast Asia but I'm not sure that there is a better provider available. The hardest part was from Poipet to Bangkok in the cramped minivan with luggage literally falling on people. While it is affordable to go by bus we would highly consider flying (much more expensive) or the more consistent train option. If you are in Cambodia or Thailand and want to start a bus business this is a route that could use some honest reliable bus transport with a very large possible customer base willing to pay more than the current prices.
I would give Hang Tep bus service 1 star out of 5.
Journey
We tried to keep an accurate time table and take as many pictures to document the journey for other travelers.
Getting Info / Booking
Most guesthouses, hotels and hostels will provide booking on buses for guest but they provided very little information on who the provider would be so we decided to goto the offices directly and analyze for ourselves. There are also a ton of travel agents in downtown Siem Reap that seem to offer tickets for the buses.
After spending a half a day trying to figure this out we ended up buying a ticket from Two Seasons Travel which seemed like the most trustworthy. The tickets were approximately $15 per person. They sold us a ticket on the Hang Tep bus company which had little information about it on the web except for a few notes that said they often oversell tickets.
The journey is basically from Siem Reap to Poipet (the border) then to Bangkok.
Reflection
Overall, this was the worst journey we had in Southeast Asia but I'm not sure that there is a better provider available. The hardest part was from Poipet to Bangkok in the cramped minivan with luggage literally falling on people. While it is affordable to go by bus we would highly consider flying (much more expensive) or the more consistent train option. If you are in Cambodia or Thailand and want to start a bus business this is a route that could use some honest reliable bus transport with a very large possible customer base willing to pay more than the current prices.
I would give Hang Tep bus service 1 star out of 5.
Journey
We tried to keep an accurate time table and take as many pictures to document the journey for other travelers.