35h 19mfrom 1,235 THBFastestSleep on the train
RP170Rapid1st train18:20Hat Yai16h 40movernight10:50 +1Bangkok (Krung Thep Aphiwat)from258฿3rd class seatBook
⏱ Change in Bangkok: wait 9h 25m at Bangkok (Krung Thep Aphiwat)
Hat Yai 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 2 good connections.
Cheapest
462 THB
RP170 + RP133 · 36h 42m
Fastest
35h 19m
RP170 + SP25 · 35h 19m · from 1,235 THB
Sleep on the train
1,800 THB
RP170 + SP25 · 35h 19m · berth fare
⚖️ The fastest connection saves 1h 23m but costs 773 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 |
|---|---|---|---|---|---|
| RP170 18:20 | Bangkok wait 9h 25m |
SP25 20:25 | 35h 19m | 1,235 THB | 1,800 THB |
| RP170 18:20 | Bangkok wait 10h 25m |
RP133 21:25 | 36h 42m | 462 THB | 1,560 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.
36h 42mfrom 462 THBCheapest
RP170Rapid1st train18:20Hat Yai16h 40movernight10:50 +1Bangkok (Krung Thep Aphiwat)from258฿3rd class seatBook
⏱ Change in Bangkok: wait 10h 25m at Bangkok (Krung Thep Aphiwat)
RP133Rapid2nd train21:25Bangkok (Krung Thep Aphiwat)9h 37movernight07:02 +1Udon Thanifrom204฿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: Udon Thani to Hat Yai · all connections
FAQ
Is there a direct train from Hat Yai to Udon Thani?
No. You change trains once, in Bangkok, and book each train as a separate ticket.
What is the fastest way from Hat Yai to Udon Thani by train?
Take RP170 at 18:20, change in Bangkok and continue on SP25. The whole trip takes about 35h 19m, including 9h 25m to change trains.
What is the cheapest train from Hat Yai to Udon Thani?
From about 462 THB per adult in total, on RP170 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.