Donsak Pier (Don Sak) Ferry Guide: Raja Ferry, Seatran, Lomprayah
Donsak piers in Surat Thani: Raja Ferry, Seatran, Lomprayah and Songserm to Koh Samui, Koh Phangan and Koh Tao, plus how to get there.
Last updated: October 29, 2026
Donsak (Don Sak) is where the mainland meets the islands: the ferry hub in Surat Thani Province for Koh Samui, Koh Phangan and Koh Tao. It is not one pier but several, each run by its own company: Raja Ferry (cars and passengers to Lipa Noi on Koh Samui and Thong Sala on Koh Phangan)[1], Seatran Ferry (to Nathon on Koh Samui and Thong Sala)[2], Lomprayah (catamarans to Nathon, Thong Sala and Koh Tao)[3], plus Songserm and Boonsiri Sealine.[4] Your ticket decides which pier you need, so know your operator before you climb into a bus or taxi.
Location and how to get there
Donsak is a district on the Gulf of Thailand coast of Surat Thani Province. Raja Ferry's headquarters and pier are at 25/1 Moo 8, Mittraphap Road, Don Sak.[5] Seatran built its own port in Bang Nam Jued in Donsak district, and the crossing to Nathon pier is about 15 nautical miles (25.5 km). Seatran, Boonsiri and Lomprayah (Laem Tuad pier) each have a separate Donsak pier.[4] Ask which one your ticket uses before you set off.
- From Surat Thani town: Combined bus and ferry tickets run from the town, the railway station and the airport to the Donsak piers. Lomprayah and Seatran both sell them.[3][2]
- From further away: Seatran Discovery sells bus and ferry combinations from places such as Krabi, Phuket, Chumphon, Hua Hin and Bangkok.[4] The ticket tells you which company's pier the bus drops you at.
- Seatran Coach: Seatran runs coach connections from Surat Thani and Nakhon Si Thammarat that link with its ferry to Koh Samui.[2]
- By boat: ferries and catamarans from Koh Samui, Koh Phangan and Koh Tao end at Donsak.
GoAsia route pages: Surat Thani to Donsak, Phuket to Donsak, Krabi to Donsak, Hat Yai to Donsak and Chumphon to Donsak.
Operators and destinations
| Operator | Island pier | What you get |
|---|---|---|
| Raja Ferry | Koh Samui (Lipa Noi), Koh Phangan (Thong Sala) | Departures from Donsak every hour from 05:00 to 19:00. Donsak to Koh Samui takes about 1 hour 30 minutes, Donsak to Koh Phangan about 2 hours 30 minutes. Extra boats run in the rush hours and in the high season (30 December to 30 April).[1] |
| Seatran Ferry | Koh Samui (Nathon), Koh Phangan (Thong Sala) | Car and passenger ferry, hourly, about 1 hour 30 minutes to Samui, with room for up to 90 vehicles.[6] Facilities are listed below. |
| Lomprayah | Koh Samui (Nathon), Koh Phangan (Thong Sala), Koh Tao (Mae Haad) | Catamarans at 11:00 and 15:00. Nathon in 45 minutes (450 THB), Thong Sala in 1 hour 45 minutes (550 THB), Koh Tao in 3 hours 45 minutes (750 THB). Add a van to your hotel and the price rises, for example to 600 THB for Nathon.[3] |
| Songserm | Koh Phangan | Koh Phangan to Donsak at 12:40, arriving 13:55 (550 THB).[7] |
| Boonsiri Sealine | Koh Tao, Koh Phangan, Koh Samui | Sold through Seatran Discovery's booking page, with its own Boonsiri pier at Donsak.[4] |
Raja docks at Lipa Noi on Koh Samui.[1] Seatran, Boonsiri, Lomprayah and Songserm all use Nathon pier.[4] Pick the island pier that sits closest to your hotel or onward ride.
Routes that use Donsak: Koh Samui to Donsak, Koh Phangan to Donsak and Koh Tao to Donsak. Combined tickets between the mainland and the islands appear on Surat Thani to Koh Samui, Koh Samui to Surat Thani, Surat Thani to Koh Phangan, Koh Phangan to Surat Thani, Surat Thani to Koh Tao and Koh Tao to Surat Thani.
Tickets and facilities
Raja Ferry runs ticket offices at Donsak, Lipa Noi on Koh Samui, Thong Sala on Koh Phangan and in Surat Thani city. The Donsak head office answers on 077 372 800.[5] Lomprayah's Donsak pier line is 065 350 3562.[3]
Seatran's Donsak pier has a modern ferry berth, an information counter, a waiting building, a restaurant, a coffee shop and parking for up to 400 cars.[6] A left-luggage service at the pier is open from 08:00 to 18:00.[2] On board, the ferries have an air-conditioned lounge, a minimart, massage and an open sun deck.[6]
Tips
- Match your bus to your ferry company. Tell the driver or booking agent which pier you need, because Raja, Seatran, Boonsiri and Lomprayah each have their own.[5][4]
- Lomprayah leaves Donsak twice a day, at 11:00 and 15:00.[3] Raja sails every hour, so it is your fallback if you miss a catamaran.[1]
- Raja adds boats in the morning (05:00 to 06:00) and afternoon (12:00 to 16:00) peaks.[1] With a vehicle in the high season, come early.
- For Koh Tao, Lomprayah sells Donsak to Mae Haad as a single ticket, so you do not have to hop via Koh Phangan or Koh Samui.[3]
- If you arrive by train or plane, buy a through-ticket that includes the bus transfer to your pier. It saves you a taxi negotiation at the pier.
Sources and background
Numbers in the text such as [1] refer to these sources.
- [1] Raja Ferry Port PLC: Time Table, Fare, Office Address, Services (Donsak head office, 25/1 Moo 8). Retrieved October 21, 2026.
- [2] Seatran Ferry Company: Seatran Ferry. Retrieved October 15, 2026.
- [3] Lomprayah: Lomprayah Timetable 2026 (from Surat Thani Donsak Pier). Retrieved October 21, 2026.
- [4] Seatran Discovery: About Seatran Discovery (Donsak pier and Bang Nam Jued port). Retrieved October 26, 2026.
- [5] Raja Ferry Port PLC: Office Address (Raja Ferry Donsak, Lipa Noi, Thong Sala). Retrieved October 21, 2026.
- [6] Seatran Ferry: Facilities at the pier (Seatran Ferry Donsak). Retrieved October 21, 2026.
- [7] Songserm: Songserm timetable. Retrieved October 21, 2026.
Frequently Asked Questions
In Donsak district on the Gulf of Thailand coast of Surat Thani Province. Raja Ferry's pier is at 25/1 Moo 8, Mittraphap Road. Seatran, Boonsiri and Lomprayah have their own piers in the same district.
Raja Ferry and Seatran Ferry run car and passenger ferries to Koh Samui and Koh Phangan. Lomprayah catamarans go to Koh Samui, Koh Phangan and Koh Tao. Boonsiri Sealine also operates from Donsak, and Songserm sails between Koh Phangan and Donsak.
About 1 hour 30 minutes on the Raja and Seatran car ferries, and 45 minutes on the Lomprayah catamaran to Nathon.
Every hour from 05:00 to 19:00, with extra boats at rush hours and in the high season.
Buy a combined bus and ferry ticket from Surat Thani town, the railway station or the airport. The bus takes you to the pier of the company on your ticket.