Surin to Udon Thani by train

There is no direct train. You change trains once in Kaeng Khoi or Saraburi or Ayutthaya or Bangkok or Rangsit or Phachi and book each train as its own ticket. We found 12 good connections.

Cheapest 426 THB RP140 + EX75 · 17h 59m Fastest 12h 58m SP22 + SP25 · 12h 58m Sleep on the train 871 THB RP140 + EX75 · 17h 59m · berth fare

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

Compare all connections

1st train	Change at	2nd train	Total time	Fare from	With berths
SP22 16:41	Kaeng Khoi wait 1h 53m	SP25 22:33	12h 58m	at booking	–
SP22 16:41	Saraburi wait 1h 32m	SP25 22:22	12h 58m	at booking	–
SP22 16:41	Saraburi wait 2h 21m	RP133 23:11	14h 21m	at booking	–
SP22 16:41	Kaeng Khoi wait 2h 42m	RP133 23:22	14h 21m	at booking	–
SP22 16:41	Ayutthaya wait 1h 07m	RP133 22:29	14h 21m	at booking	–
RP140 22:56	Bangkok wait 1h 55m	EX75 08:45	17h 59m	426 THB	871 THB
RP140 22:56	Ayutthaya wait 4h 05m	EX75 09:41	17h 59m	at booking	–
RP140 22:56	Kaeng Khoi wait 6h 03m	EX75 10:28	17h 59m	at booking	–
RP140 22:56	Rangsit wait 2h 49m	EX75 09:12	17h 59m	at booking	–
RP140 22:56	Phachi wait 4h 45m	EX75 09:58	17h 59m	at booking	–
RP140 22:56	Saraburi wait 5h 35m	EX75 10:17	17h 59m	at booking	–
RP136 09:59	Bangkok wait 2h 25m	SP25 20:25	19h 40m	1,159 THB	1,159 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.

12h 58mFastestShort change: trains can be late

Day 1 16:41 Surin → Day 1 20:40 Kaeng Khoi

SP22 · Special Express · 3h 59m

Book SP22
⏱ Change in Kaeng Khoi: wait 1h 53m at Kaeng Khoi
Day 1 22:33 Kaeng Khoi → Day 2 05:39 Udon Thani

SP25 · Special Express · 7h 06m · 🌙 overnight

Book SP25

12h 58mShort change: trains can be late

Day 1 16:41 Surin → Day 1 20:50 Saraburi

SP22 · Special Express · 4h 09m

Book SP22
⏱ Change in Saraburi: wait 1h 32m at Saraburi
Day 1 22:22 Saraburi → Day 2 05:39 Udon Thani

SP25 · Special Express · 7h 17m · 🌙 overnight

Book SP25

14h 21m

Day 1 16:41 Surin → Day 1 20:50 Saraburi

SP22 · Special Express · 4h 09m

Book SP22
⏱ Change in Saraburi: wait 2h 21m at Saraburi
Day 1 23:11 Saraburi → Day 2 07:02 Udon Thani

RP133 · Rapid · 7h 51m · 🌙 overnight

Book RP133

14h 21m

Day 1 16:41 Surin → Day 1 20:40 Kaeng Khoi

SP22 · Special Express · 3h 59m

Book SP22
⏱ Change in Kaeng Khoi: wait 2h 42m at Kaeng Khoi
Day 1 23:22 Kaeng Khoi → Day 2 07:02 Udon Thani

RP133 · Rapid · 7h 40m · 🌙 overnight

Book RP133

14h 21mShort change: trains can be late

Day 1 16:41 Surin → Day 1 21:22 Ayutthaya

SP22 · Special Express · 4h 41m

Book SP22
⏱ Change in Ayutthaya: wait 1h 07m at Ayutthaya
Day 1 22:29 Ayutthaya → Day 2 07:02 Udon Thani

RP133 · Rapid · 8h 33m · 🌙 overnight

Book RP133

17h 59mfrom 426 THBCheapestSleep on the trainShort change: trains can be late

Day 1 22:56 Surin → Day 2 06:50 Bangkok (Krung Thep Aphiwat)

RP140 · Rapid · 7h 54m · 🌙 overnight · from 182 THB · berth 627 THB

Book RP140
⏱ Change in Bangkok: wait 1h 55m 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

17h 59m

Day 1 22:56 Surin → Day 2 05:36 Ayutthaya

RP140 · Rapid · 6h 40m · 🌙 overnight

Book RP140
⏱ Change in Ayutthaya: wait 4h 05m at Ayutthaya
Day 2 09:41 Ayutthaya → Day 2 16:55 Udon Thani

EX75 · Express · 7h 14m

Book EX75

17h 59m

Day 1 22:56 Surin → Day 2 04:25 Kaeng Khoi

RP140 · Rapid · 5h 29m · 🌙 overnight

Book RP140
⏱ Change in Kaeng Khoi: wait 6h 03m at Kaeng Khoi
Day 2 10:28 Kaeng Khoi → Day 2 16:55 Udon Thani

EX75 · Express · 6h 27m

Book EX75

17h 59m

Day 1 22:56 Surin → Day 2 06:23 Rangsit

RP140 · Rapid · 7h 27m · 🌙 overnight

Book RP140
⏱ Change in Rangsit: wait 2h 49m at Rangsit
Day 2 09:12 Rangsit → Day 2 16:55 Udon Thani

EX75 · Express · 7h 43m

Book EX75

17h 59m

Day 1 22:56 Surin → Day 2 05:13 Phachi

RP140 · Rapid · 6h 17m · 🌙 overnight

Book RP140
⏱ Change in Phachi: wait 4h 45m at Phachi
Day 2 09:58 Phachi → Day 2 16:55 Udon Thani

EX75 · Express · 6h 57m

Book EX75

17h 59m

Day 1 22:56 Surin → Day 2 04:42 Saraburi

RP140 · Rapid · 5h 46m · 🌙 overnight

Book RP140
⏱ Change in Saraburi: wait 5h 35m at Saraburi
Day 2 10:17 Saraburi → Day 2 16:55 Udon Thani

EX75 · Express · 6h 38m

Book EX75

19h 40mfrom 1,159 THB

Day 1 09:59 Surin → Day 1 18:00 Bangkok (Krung Thep Aphiwat)

RP136 · Rapid · 8h 01m · from 182 THB

Book RP136
⏱ Change in Bangkok: wait 2h 25m at Bangkok (Krung Thep Aphiwat)
Day 1 20:25 Bangkok (Krung Thep Aphiwat) → Day 2 05:39 Udon Thani

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

Book SP25

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 Surin to Udon Thani?

No. You change trains once, in Kaeng Khoi or Saraburi or Ayutthaya or Bangkok or Rangsit or Phachi, and book each train as a separate ticket.

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

Take SP22 at 16:41, change in Kaeng Khoi and continue on SP25. The whole trip takes about 12h 58m, including 1h 53m to change trains.

What is the cheapest train from Surin to Udon Thani?

From about 426 THB per adult in total, on RP140 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.