Trang 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 488 THB EX84 + RP133 · 38h 02m Fastest 23h 55m EX84 + EX75 · 23h 55m · from 528 THB Sleep on the train 1,114 THB EX84 + EX75 · 23h 55m · berth fare

⚖️ The fastest connection saves 14h 07m but costs 40 THB more than the cheapest one.

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

Compare all connections

1st train	Change at	2nd train	Total time	Fare from	With berths
EX84 17:00	Bangkok wait 1h 40m	EX75 08:45	23h 55m	528 THB	1,114 THB
EX84 17:00	Bangkok wait 13h 20m	SP25 20:25	36h 39m	1,261 THB	1,847 THB
EX84 17:00	Bangkok wait 14h 20m	RP133 21:25	38h 02m	488 THB	1,607 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.

23h 55mfrom 528 THBFastestSleep on the trainShort change: trains can be late

Day 1 17:00 Trang → Day 2 07:05 Bangkok (Krung Thep Aphiwat)

EX84 · Express · 14h 05m · 🌙 overnight · from 284 THB · berth 870 THB

Book EX84
⏱ Change in Bangkok: wait 1h 40m 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

36h 39mfrom 1,261 THB

Day 1 17:00 Trang → Day 2 07:05 Bangkok (Krung Thep Aphiwat)

EX84 · Express · 14h 05m · 🌙 overnight · from 284 THB · berth 870 THB

Book EX84
⏱ Change in Bangkok: wait 13h 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

38h 02mfrom 488 THBCheapest

Day 1 17:00 Trang → Day 2 07:05 Bangkok (Krung Thep Aphiwat)

EX84 · Express · 14h 05m · 🌙 overnight · from 284 THB · berth 870 THB

Book EX84
⏱ Change in Bangkok: wait 14h 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 Trang to Udon Thani?

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

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

Take EX84 at 17:00, change in Bangkok and continue on EX75. The whole trip takes about 23h 55m, including 1h 40m to change trains.

What is the cheapest train from Trang to Udon Thani?

From about 488 THB per adult in total, on EX84 and RP133 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.