Sungai Kolok to Udon Thani by train

There is no direct train. You change trains once in Bangkok and book each train as its own ticket. We found 3 good connections.

Cheapest 533 THB RP172 + EX75 · 28h 45m Fastest 28h 45m RP172 + EX75 · 28h 45m · from 533 THB Sleep on the train 1,140 THB RP172 + EX75 · 28h 45m · berth fare

Day you leave Sungai KolokThe second train's date is set for you.

Compare all connections

1st train	Change at	2nd train	Total time	Fare from	With berths
RP172 12:10	Bangkok wait 1h 15m	EX75 08:45	28h 45m	533 THB	1,140 THB
SP38 14:15	Bangkok wait 11h 20m	SP25 20:25	39h 24m	1,346 THB	1,993 THB
SP38 14:15	Bangkok wait 12h 20m	RP133 21:25	40h 47m	573 THB	1,753 THB

Fares are per adult for the cheapest class we know on each train. "With berths" uses a sleeper berth on the overnight train(s). Live fares show when you book.

28h 45mfrom 533 THBCheapestFastestSleep on the trainShort change: trains can be late

Day 1 12:10 Sungai Kolok → Day 2 07:30 Bangkok (Krung Thep Aphiwat)

RP172 · Rapid · 19h 20m · 🌙 overnight · from 289 THB · berth 896 THB

Book RP172
⏱ Change in Bangkok: wait 1h 15m at Bangkok (Krung Thep Aphiwat)
Day 2 08:45 Bangkok (Krung Thep Aphiwat) → Day 2 16:55 Udon Thani

EX75 · Express · 8h 10m · from 244 THB

Book EX75

39h 24mfrom 1,346 THB

Day 1 14:15 Sungai Kolok → Day 2 09:05 Bangkok (Krung Thep Aphiwat)

SP38 · Special Express · 18h 50m · 🌙 overnight · from 369 THB · berth 1,016 THB

Book SP38
⏱ Change in Bangkok: wait 11h 20m at Bangkok (Krung Thep Aphiwat)
Day 2 20:25 Bangkok (Krung Thep Aphiwat) → Day 3 05:39 Udon Thani

SP25 · Special Express · 9h 14m · 🌙 overnight · from 977 THB · berth 977 THB

Book SP25

40h 47mfrom 573 THB

Day 1 14:15 Sungai Kolok → Day 2 09:05 Bangkok (Krung Thep Aphiwat)

SP38 · Special Express · 18h 50m · 🌙 overnight · from 369 THB · berth 1,016 THB

Book SP38
⏱ Change in Bangkok: wait 12h 20m at Bangkok (Krung Thep Aphiwat)
Day 2 21:25 Bangkok (Krung Thep Aphiwat) → Day 3 07:02 Udon Thani

RP133 · Rapid · 9h 37m · 🌙 overnight · from 204 THB · berth 737 THB

Book RP133

Good to know

Each train is a separate ticket. Book the first train, then the second train for the day it leaves.
Leave at least 2–3 hours to change trains. Long-distance trains, especially from the south, often run late, and a missed connection is not refunded.
Most long-distance trains in Bangkok use Krung Thep Aphiwat Central Terminal, so you usually change in the same building.
Times and fares come from our timetable and can change. The booking page shows the live times, seats and fares.

FAQ

Is there a direct train from Sungai Kolok to Udon Thani?

No. You change trains once, in Bangkok, and book each train as a separate ticket.

What is the fastest way from Sungai Kolok to Udon Thani by train?

Take RP172 at 12:10, change in Bangkok and continue on EX75. The whole trip takes about 28h 45m, including 1h 15m to change trains.

What is the cheapest train from Sungai Kolok to Udon Thani?

From about 533 THB per adult in total, on RP172 and EX75 in the cheapest available class.

How much time should I leave to change trains?

At least one hour at the same station. Long-distance trains, especially from the south, are often late, so a wait of 2–3 hours is safer. If you change between Hua Lamphong and Krung Thep Aphiwat in Bangkok, allow extra time to cross the city.