26h 47mfrom 526 THBFastestSleep on the train
EX76Express1st train07:08Udon Thani8h 12mdirect15:20Bangkok (Krung Thep Aphiwat)from244฿3rd class seatBook
⏱ Change in Bangkok: wait 4h 30m at Bangkok (Krung Thep Aphiwat)
Udon Thani to Nakhon Si Thammarat by train
There is no direct train. You change trains once in Bangkok and book each train as its own ticket. We found 2 good connections.
Cheapest
486 THB
EX76 + RP173 · 27h 12m
Fastest
26h 47m
EX76 + EX85 · 26h 47m · from 526 THB
Sleep on the train
1,109 THB
EX76 + EX85 · 26h 47m · berth fare
⚖️ The fastest connection saves 0h 25m but costs 40 THB more than the cheapest one.
1
The second train's date is set for you.
Compare all connections
| 1st train | Change at | 2nd train | Total time | Fare from | With berths |
|---|---|---|---|---|---|
| EX76 07:08 | Bangkok wait 4h 30m |
EX85 19:50 | 26h 47m | 526 THB | 1,109 THB |
| EX76 07:08 | Bangkok wait 4h 50m |
RP173 20:10 | 27h 12m | 486 THB | 1,029 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.
27h 12mfrom 486 THBCheapest
EX76Express1st train07:08Udon Thani8h 12mdirect15:20Bangkok (Krung Thep Aphiwat)from244฿3rd class seatBook
⏱ Change in Bangkok: wait 4h 50m at Bangkok (Krung Thep Aphiwat)
RP173Rapid2nd train20:10Bangkok (Krung Thep Aphiwat)14h 10movernight10:20 +1Nakhon Si Thammaratfrom242฿3rd class seatBook
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.
See also: night trains · return: Nakhon Si Thammarat to Udon Thani · all connections
FAQ
Is there a direct train from Udon Thani to Nakhon Si Thammarat?
No. You change trains once, in Bangkok, and book each train as a separate ticket.
What is the fastest way from Udon Thani to Nakhon Si Thammarat by train?
Take EX76 at 07:08, change in Bangkok and continue on EX85. The whole trip takes about 26h 47m, including 4h 30m to change trains.
What is the cheapest train from Udon Thani to Nakhon Si Thammarat?
From about 486 THB per adult in total, on EX76 and RP173 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.