Explore 3 ways to travel

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2rio's travel planner.

Recommended option

Bus  •  10 h

  1. Take the bus from Siem Reap to Pakse
  2. Take the bus from Pakse to Ubon Ratchathani

$15 - $51

3 alternative options

Drive  •  5 h 4 min

  1. Drive from Siem Reap to Ubon Ratchathani 196.6 miles

$25 - $40

Fly to Ubon  •  4 h 3 min

  1. Fly from Siem Reap (REP) to Ubon (UBP) REP - UBP

$109 - $261

Fly to Pakse, bus  •  4 h 10 min

  1. Fly from Siem Reap (REP) to Pakse (PKZ) REP - PKZ
  2. Take the bus from Pakse to Ubon Ratchathani

$74 - $321

Questions & Answers

The distance between Siem Reap and Ubon Ratchathani is 234 km. The road distance is 314 km.

The cheapest way to get from Siem Reap to Ubon Ratchathani is to bus which costs $15 - $55 and takes 10 h.

The quickest way to get from Siem Reap to Ubon Ratchathani is to fly which takes 4 h 3 min and costs $100 - $270.

No, there is no direct bus from Siem Reap to Ubon Ratchathani. However, there are services departing from Siem Reap and arriving at Ubon Ratchathani via Pakse. The journey, including transfers, takes approximately 10 h.

It takes approximately 10 h to get from Siem Reap to Ubon Ratchathani, including transfers.

What companies run services between Siem Reap, Cambodia and Ubon Ratchathani, Thailand?

You can take a bus from Siem Reap to Ubon Ratchathani via Pakse in around 10 h. Alternatively, Thai AirAsia, Thai Smile and Bangkok Airways fly from Siem Reap to Ubon Ratchathani every 4 hours.

Airlines
Thai AirAsia
Website
airasia.com
Flights from Siem Reap to Ubon via Don Muang
Ave. Duration
5 h 37 min
When
Every day
Estimated price
$60 - $190
Flights from Siem Reap to Ubon via Phuket, Utapao
Ave. Duration
7 h 20 min
When
Monday, Wednesday, Friday and Sunday
Estimated price
$140 - $320
Lao Airlines
Website
laoairlines.com
Flights from Siem Reap to Pakse
Ave. Duration
1 h
When
Monday, Tuesday, Wednesday, Friday and Saturday
Estimated price
$60 - $250
Thai Smile
Website
thaismileair.com
Flights from Siem Reap to Ubon via Suvarnabhumi
Ave. Duration
4 h 15 min
When
Every day
Estimated price
$150 - $460
Bus operators
AVT Asia Van Transfer
Website
asiavantransfer.com
Bus from Siem Reap AVT - Asia Van Transfer to Pakse
Ave. Duration
10 h
Frequency
Once daily
Estimated price
$30
Schedules at
asiavantransfer.com
Book at
baolau.com
The Transport Company
Naga travel
Website
nagatravel.com
Bus from Pakse to Ubon Ratchathani
Ave. Duration
3 h
Frequency
Twice daily
Estimated price
$21
Schedules at
nagatravel.com
Book at
12go.asia

Want to know more about travelling around the world?

Rome2rio's Travel Guide series provide vital information for the global traveller. Read our range of informative guides on popular transport routes and companies - including Travelling Croatia’s Dalmatian Coast by boat, bus, car and train, South Korea: Travelling from Seoul to Busan and What documents do I need to cross Niagara Falls? - to help you get the most out of your next trip.