Hat Yai to Khon Kaen 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 445 THB RP170 + RP133 · 34h 50m Fastest 33h 50m RP170 + SP25 · 33h 50m · from 1,165 THB Sleep on the train 1,730 THB RP170 + SP25 · 33h 50m · berth fare

⚖️ The fastest connection saves 1h but costs 720 THB more than the cheapest one.

Day you leave Hat YaiThe 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	33h 50m	1,165 THB	1,730 THB
RP170 18:20	Bangkok wait 10h 25m	RP133 21:25	34h 50m	445 THB	1,500 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.

33h 50mfrom 1,165 THBFastestSleep on the train

Day 1 18:20 Hat Yai → Day 2 10:50 Bangkok (Krung Thep Aphiwat)

RP170 · Rapid · 16h 40m · 🌙 overnight · from 258 THB · berth 823 THB

Book RP170
⏱ Change in Bangkok: wait 9h 25m at Bangkok (Krung Thep Aphiwat)
Day 2 20:25 Bangkok (Krung Thep Aphiwat) → Day 3 04:10 Khon Kaen

SP25 · Special Express · 7h 45m · 🌙 overnight · from 907 THB · berth 907 THB

Book SP25

34h 50mfrom 445 THBCheapest

Day 1 18:20 Hat Yai → Day 2 10:50 Bangkok (Krung Thep Aphiwat)

RP170 · Rapid · 16h 40m · 🌙 overnight · from 258 THB · berth 823 THB

Book RP170
⏱ Change in Bangkok: wait 10h 25m at Bangkok (Krung Thep Aphiwat)
Day 2 21:25 Bangkok (Krung Thep Aphiwat) → Day 3 05:10 Khon Kaen

RP133 · Rapid · 7h 45m · 🌙 overnight · from 187 THB · berth 677 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 Hat Yai to Khon Kaen?

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

What is the fastest way from Hat Yai to Khon Kaen by train?

Take RP170 at 18:20, change in Bangkok and continue on SP25. The whole trip takes about 33h 50m, including 9h 25m to change trains.

What is the cheapest train from Hat Yai to Khon Kaen?

From about 445 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.