Travel by train from Koh Samui to Bangkok is a great way to save money. Travelling by train is less than half the cost of flying from Koh Samui to Bangkok, and if you book an inexpensive 2nd Class sleeper berth you can also save on the cost of a hotel room for the night.
Ferry and bus services from Koh Samui to Surat Thani Station
Times of joint ferry and bus services from Koh Samui to Surat Thani Railway Station.
| Koh Samui | Surat Thani Station | Cost | Company |
| 05:00 | 09:45 | 420 THB | Raja Ferry |
| 06:00 | 09:30 | 470 THB | Seatran Ferry |
| 07:00 | 10:30 | 470 THB | Seatran Ferry |
| 08:00 | 11:30 | 470 THB | Seatran Ferry |
| 08:00 | 11:30 | 400 THB | Phantip |
| 08:30 | 11:00 | 750 THB | Lomprayah |
| 09:00 | 12:30 | 470 THB | Seatran Ferry |
| 09:00 | 12:45 | 420 THB | Raja Ferry |
| 10:00 | 13:30 | 470 THB | Seatran Ferry |
| 10:00 | 13:30 | 400 THB | Phantip |
| 11:00 | 14:30 | 470 THB | Seatran Ferry |
| 11:00 | 15:45 | 420 THB | Raja Ferry |
| 11:45 | 14:00 | 750 THB | Lomprayah |
| 12:00 | 15:30 | 470 THB | Seatran Ferry |
| 12:00 | 15:30 | 400 THB | Phantip |
| 13:00 | 16:30 | 470 THB | Seatran Ferry |
| 14:00 | 17:30 | 400 THB | Phantip |
| 14:00 | 17:30 | 470 THB | Seatran Ferry |
| 14:00 | 18:45 | 420 THB | Raja Ferry |
| 17:00 | 21:45 | 420 THB | Raja Ferry |
- Buy joint ferry and bus tickets for services from Koh Samui to Surat Thani Railway Station.
- These services depart from different places in Koh Samui:
- Lomprayah: Na Thon Ferry Pier.
- Raja Ferry: Lipa Noi Ferry Pier.
- Phantip Travel: Na Thon Ferry Pier.
Train services from Surat Thani to Bangkok
Train times from Surat Thani to Bangkok.
| Surat Thani | Bangkok | Train | Sleeper |
| 10:25 | 20:30 | 40 | No |
| 17:08 | 07:00 | 168 | Yes |
| 18:52 | 07:45 | 86 | Yes |
| 19:41 | 08:25 | 170 | Yes |
| 20:14 | 09:25 | 84 | Yes |
| 21:05 | 08:45 | 42/44 | No |
| 21:16 | 10:30 | 172 | Yes |
| 22:27 | 10:50 | 32 | Yes |
| 23:14 | 12:05 | 38/46 | Yes |
- Buy train tickets from Surat Thani to Bangkok.
Location of Na Thon Ferry Pier
Lomprayah and Songserm services to Surat Thani Railway Station depart from Na Thon Ferry Pier.
Location of Surat Thani Railway Station
Trains to Bangkok depart from Surat Thani Railway Station which is in a neighbouring town to Surat Thani City.
Location of Bangkok Railway Station
From the 19th January 2023 the main railway station in Bangkok is Krung Thep Aphiwat Central Terminal (also known as Bang Sue Grand Station).
About train travel to Bangkok
The first part of the journey by train to Bangkok is travelling from Koh Samui to Surat Thani Railway Station, which is the closest railway station to the Koh Samui. There are several different companies operating joint ferry and bus services from Koh Samui to Surat Thani Railway Station. All but one of these companies use ferry services which arrive on the mainland at Donsak, which is a 90 minute drive away from Surat Thani Railway Station. The only company with a ferry terminal near the train station is the Lomprayah High Speed Ferry Company whose services arrive on the mainland at a pier near Surat Thani City and about 30 minutes by road to Surat Thani Railway Station.
2nd Class sleeper carriage on a train to BangkokThere are several different types of train you take from Surat Thani to Bangkok and several different types of seats you can book. The only train which completes the journey during the course of a single day is Train 40 departing at 10:25 and scheduled to arrive at 20:30. Train 40 is a sprinter train with air-conditioned seats. All the other trains from Surat Thani to Bangkok (except Train 42/44) have sleeper berths available. 2nd Class sleeper berths are arranged bunk bed style on Thai trains, with an upper bunk folding down when the beds are prepared and privacy curtain installed for each bed. 2nd Class sleeper berths are either in air-conditioned carriages which are more expensive than the fan cooled carriages, which are other type of 2nd Class sleeper carriage. Upper berths on fan cooled carriages are uncomfortably hot, although lower bunks in fan cooled carriage are not because you can open the window. 1st Class compartments have only 2 beds, one of which folds down, and a door which you can lock making the compartment private.