Thailand
Surat Thani (Donsak) → Koh Samui
The main car and passenger ferry crossing between mainland Surat Thani and Koh Samui. Raja Ferry (to Lipa Noi) and Seatran Ferry (to Nathon) each sail hourly and take about 1 hour 30 minutes, and Lomprayah’s catamaran reaches Nathon in 45 minutes.
Surat Thani (Donsak) to Koh Samui ferry at a glance
The ferry from Surat Thani (Donsak) to Koh Samui takes 45m – 1h 30m across the Gulf of Thailand, operated by Seatran Ferry, Raja Ferry and Lomprayah. Both vehicles and foot passengers are carried. Typical frequency: raja Ferry and Seatran Ferry each sail hourly from 05:00 to 19:00; Lomprayah catamarans at 11:00 and 15:00.
Crossing times and frequencies are typical figures and vary by season. Confirm the current timetable with the operator or booking partner before you travel. Route facts last reviewed 2026-10-04.
Sources: rajaferryport.com · seatrandiscovery.com · lomprayah.com · songserm.com · How we verify
Return crossing: Koh Samui to Surat Thani (Donsak)
Seatran Ferry and Raja Ferry and Lomprayah also sail Koh Samui to Surat Thani (Donsak), taking 45m – 1h 30m. From Samui, Raja Ferry (Lipa Noi) and Seatran Ferry (Nathon) also leave hourly from 05:00 to 19:00, taking about 1 hour 30 minutes. From Nathon, Lomprayah’s catamaran leaves at 08:30 (arr. 09:15), Boonsiri’s at 10:20 (arr. 11:40 at its own Donsak pier) and Songserm’s speedboat at 13:10 (arr. 13:55).
Surat Thani (Donsak) to Koh Samui ferry timetable & sailing pattern
Two car-ferry lines each sail hourly from 05:00 to 19:00 (15 sailings a day each way), taking about 1 hour 30 minutes: Raja Ferry lands at Lipa Noi pier, Seatran Ferry at Nathon pier. Lomprayah adds catamarans from its Laem Thuat pier at Donsak to Nathon at 11:00 and 15:00 (45 minutes), and Songserm a 17:00 speedboat to Nathon (45 minutes).
Raja Ferry adds extra boats at the busy times (05:00–06:00 and 12:00–16:00) when the ferry is full, and in the festival period (30 Dec – 30 Apr) when many vehicles are waiting.
Published departure times
- Raja Ferry (to Lipa Noi): hourly 05:00–19:00
- Seatran Ferry (to Nathon): hourly 05:00–19:00
- Lomprayah catamaran (to Nathon): 11:00, 15:00
- Songserm speedboat (to Nathon): 17:00
Return: From Samui, Raja Ferry (Lipa Noi) and Seatran Ferry (Nathon) also leave hourly from 05:00 to 19:00, taking about 1 hour 30 minutes. From Nathon, Lomprayah’s catamaran leaves at 08:30 (arr. 09:15), Boonsiri’s at 10:20 (arr. 11:40 at its own Donsak pier) and Songserm’s speedboat at 13:10 (arr. 13:55).
Timetables change by season and date. Check exact departures for your travel date on the official timetable.
Official Seatran Ferry timetable →Check prices & book on 12Go →Source: Raja Ferry sailing schedule; Seatran booking search; Lomprayah Timetable 2026; Songserm timetable. Verified 2026-10-04.
Maritime Crossing Route Map
Interactive sea passage between Surat Thani (Donsak) and Koh Samui
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Operators on This Route
| Operator | Crossing Time | Vessels |
|---|---|---|
| Seatran Ferry | 1h 30m | Seatran RoRo Car Ferry Fleet |
| Raja Ferry | 1h 30m (to Lipa Noi) | Raja RoRo Fleet |
| Lomprayah | 45m (catamaran to Nathon) | High-speed catamaran |
Route Features
Vehicles
Cars, campervans, and motorbikes accepted
Foot Passengers
Walk-on passengers welcome
Pets
Pets allowed with valid documents
Distance
19 nautical miles
Getting There & Onward Transport
- Combined bus + ferry tickets connect Donsak Pier directly to Surat Thani Railway Station (Phunphin) and Surat Thani Airport (URT)
- Nathon Pier is the administrative hub of Koh Samui with songthaew pick-up trucks to Chaweng and Lamai