There are 6 ways to get from Udon Thani to Siem Reap by plane, bus, train or car

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

Fly  •  3 h 11 min

  1. Fly from Udon Thani (UTH) to Siem Reap (REP) UTH - REP

$90 - $292

Cheapest option

Bus via Nakhon Ratchasima  •  16 h 24 min

  1. Take the bus from Udon Thani to Nakhon Ratchasima
  2. Take the bus from Nakhon Ratchasima to Aranyaprathet
  3. Take the bus from Poipet to Siem Reap

$21 - $24

4 alternative options

Bus Air Udon  •  16 h

  1. Take the bus from Udonthani Terminal to Bangkok Mochit Terminal
  2. Take the bus from Bangkok Mochit Bus Terminal to Siem Reap

$23 - $40

Train, bus  •  18 h 45 min

  1. Take the train from Udon Thani to Bang Sue 76 Nong Khai - Hua Lamphong - Class II AC
  2. Take the bus from Bangkok Mochit Bus Terminal to Siem Reap

$23 - $69

Train, bus via Aranyaprathet  •  22 h 25 min

  1. Take the train from Udon Thani to Hua Lamphong
  2. Take the train from Hua Lamphong to Aranyaprathet
  3. Take the bus from Poipet to Siem Reap

$27 - $86

Drive  •  9 h 11 min

  1. Drive from Udon Thani to Siem Reap 377 miles

$45 - $75

Questions & Answers

No, there is no direct bus from Udon Thani to Siem Reap. However, there are services departing from Udonthani Terminal and arriving at Siem Reap via Bangkok Mochit Bus Terminal. The journey, including transfers, takes approximately 16 h.

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The distance between Udon Thani and Siem Reap is 465 km. The road distance is 603.1 km.

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The best way to get from Udon Thani to Siem Reap without a car is to bus which takes 16 h and costs .

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It takes approximately 3 h 11 min to get from Udon Thani to Siem Reap, including transfers.

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Udon Thani to Siem Reap bus services, operated by Air Udon, depart from Udonthani Terminal station.

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The best way to get from Udon Thani to Siem Reap is to fly which takes 3 h 11 min and costs . Alternatively, you can bus, which costs and takes 16 h.

Mode details

There is no direct flight from Udon Thani Airport to Siem Reap Airport. The quickest flight takes 3 h and has one stopover.

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Udon Thani to Siem Reap bus services, operated by The Transport Company, arrive at Siem Reap station.

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Yes, the driving distance between Udon Thani to Siem Reap is 603 km. It takes approximately 9 h 11 min to drive from Udon Thani to Siem Reap.

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Nok Air, Thai Lion Mentari, Bangkok Airways and two other airlines offer flights from Udon Thani Airport to Siem Reap Airport.

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Map of how to get from Udon Thani to Siem Reap.
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  • Distance: 290.8 miles
  • Duration: 3 h 11 min

What companies run services between Udon Thani, Thailand and Siem Reap, Cambodia?

Thai AirAsia, Thai Smile and three other airlines fly from Udon Thani to Siem Reap every 2 hours. Alternatively, you can take a bus from Udon Thani to Siem Reap via Bangkok Mochit Terminal and Bangkok Mochit Bus Terminal in around 16 h.

Airlines
Thai AirAsia
Website
airasia.com
Flights from Udon Thani to Siem Reap via Don Muang
Ave. Duration
3 h 23 min
When
Every day
Estimated price
$65 - $180
Thai Smile
Website
thaismileair.com
Flights from Udon Thani to Siem Reap via Suvarnabhumi
Ave. Duration
4 h
When
Every day
Estimated price
$150 - $430
Train operators
State Railway of Thailand
Website
railway.co.th
Train from Udon Thani to Bang Sue
Ave. Duration
10 h 5 min
Frequency
Once daily
Estimated price
$12 - $45
Schedules at
railway.co.th
Book at
12go.asia
3rd Class (Seat)
$5 - $9
2nd Class (Seat)
$12 - $17
2nd Class (Berth)
$21 - $29
1st Class (Berth)
$30 - $45
Train from Udon Thani to Hua Lamphong
Ave. Duration
10 h 30 min
Frequency
Once daily
Estimated price
$12 - $45
Schedules at
railway.co.th
Book at
12go.asia
3rd Class (Seat)
$5 - $9
2nd Class (Seat)
$12 - $17
2nd Class (Berth)
$21 - $29
1st Class (Berth)
$35 - $45
Train from Hua Lamphong to Aranyaprathet
Ave. Duration
5 h 40 min
Frequency
Once daily
Estimated price
$9 - $35
Schedules at
railway.co.th
Book at
12go.asia
3rd Class (Seat)
$3 - $7
2nd Class (Seat)
$9 - $14
2nd Class (Berth)
$18 - $25
1st Class (Berth)
$27 - $35
Bus operators
Air Udon
Website
12go.asia
Bus from Udonthani Terminal to Bangkok Mochit Terminal
Ave. Duration
8 h
Frequency
Every 4 hours
Estimated price
$14
Schedules at
12go.asia
Nakhonchai Air
Website
nakhonchaiair.com
Bus from Udonthani to Bangkok Mochit Bus Terminal
Ave. Duration
8 h 52 min
Frequency
Every 4 hours
Estimated price
$13 - $17
Book at
nakhonchaiair.com
Sawadee Esan
Website
12go.asia
Bus from Udonthani to Bangkok Mochit Bus Terminal
Ave. Duration
9 h 30 min
Frequency
Twice daily
Estimated price
$16
Schedules at
12go.asia
Book at
12go.asia
The Transport Company
Website
home.transport.co.th
Bus from Bangkok Mochit Bus Terminal to Siem Reap
Ave. Duration
7 h
Frequency
Twice daily
Estimated price
$10 - $24
Schedules at
home.transport.co.th
Bus from Udon Thani to Nakhon Ratchasima
Ave. Duration
5 h 15 min
Frequency
Twice daily
Estimated price
$7 - $11
Schedules at
home.transport.co.th
Nattakan Transport
Bus from Bangkok Mochit Terminal to Siem Reap Cambodia
Ave. Duration
7 h
Frequency
Twice daily
Estimated price
$28
Schedules at
bookmebus.com
Book at
bookmebus.com
bus
Bus from Nakhon Ratchasima to Aranyaprathet
Ave. Duration
5 h
Frequency
5 times a day
Estimated price
$7
Capitol Tour Cambodia
Website
capitoltourscambodia.com
Bus from Poipet to Siem Reap
Ave. Duration
3 h
Frequency
Once daily
Estimated price
$5
Schedules at
capitoltourscambodia.com
Book at
bookmebus.com

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More Questions & Answers

There are 823+ hotels available in Siem Reap. Prices start at $16 USD per night.

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The best way to get from Udon Thani to Udon Thani Airport is to taxi which takes 8 min and costs .

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