A Raja car ferry at sea between Donsak and Koh SamuiPhoto: Per Meistrup, CC BY-SA 4.0
Gulf islands · Thailand

Koh Samui to Donsak ferry

On 25 Oct 2026, 12Go listed 7 boats from Koh Samui to Donsak run by 7 companies. The quickest takes 45 min (Lomprayah, Express), and the cheapest is about €8 per adult with Raja Ferry. The first boat leaves at 04:00 and the last at 13:10.

Journey
45 minfastest · typical 1h 19m
Fares
€8from, per adult
Sailings
704:00–13:10
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  • 7 operators compared

Times and fares from 12Go for 25 Oct 2026, checked 22 Oct 2026. We earn a commission if you book, at no extra cost to you.

Which boat should I take?

2 good picks from the 7 boats 12Go listed on this route.

Koh Samui to Donsak ferry timetable

Departures 12Go listed for 25 Oct 2026. Tap a row to see that day on 12Go.

DepartsArrivesTimeOperatorFrom → toFromBook
04:0005:191h 19mRaja FerryLipa Noi Koh Samui → Donsak Raja Ferry€8Book
04:0005:301h 30mRaja Car FerryCar + driverLipa Noi Koh Samui → Donsak Raja Ferry€21Book
05:0006:301h 30mSeatran FerryNa Thon Seatran Ferry Pier → Donsak Seatran Ferry€10Book
08:3009:1545 minLomprayahExpressLomprayah Nathon Pier → Donsak Lomprayah Ferry€13Book
12:0013:201h 20mBoonsiri High Speed FerriesCatamaranKoh Samui Nathon Pier Catamaran → Surat Thani Donsak Boonsiri Office Catamaran€9Book
13:1013:5545 minSongsermSpeedboatNa Thon Koh Samui Songserm → Songserm Pier€13Book
13:1013:5545 minSongserm ExpressSpeedboatNa Thon Koh Samui Songserm → Songserm Pier€14Book

Fares are 12Go’s lowest adult price per departure on 25 Oct 2026, in euros, rounded. Children’s fares, luggage rules and refund terms are shown at checkout.

How the boats compare

4 of the 7 boats leave before midday and 3 in the afternoon, between 04:00 and 13:10. Journey times vary a lot: the slowest, Raja Car Ferry at 1h 30m, takes 45 min longer than the quickest, and fares range from about €8 to €21.

Arrivals in Donsak run from 05:19 to 13:55, and a typical fare on this crossing is around €13 per adult. Boats land at Donsak Raja Ferry, Donsak Seatran Ferry and Donsak Lomprayah Ferry, so check which one is nearest your stay.

Lomprayah runs the most departures (1), followed by Songserm (1). Boats used include Ferry, Express, Catamaran and Speedboat.

Departures use 5 different departure points in Koh Samui: Lipa Noi Koh Samui, Na Thon Seatran Ferry Pier, Lomprayah Nathon Pier and Koh Samui Nathon Pier Catamaran. Pick the boat that leaves closest to where you are staying.

Ferry companies on this route

Lomprayah

Boats
1 (08:30)
Fastest
45 min
From
€13
Boats used
Express

Songserm

Boats
1 (13:10)
Fastest
45 min
From
€13

Songserm Express

Boats
1 (13:10)
Fastest
45 min
From
€14

Raja Ferry

Boats
1 (04:00)
Fastest
1h 19m
From
€8

Boonsiri High Speed Ferries

Boats
1 (12:00)
Fastest
1h 20m
From
€9
Boats used
Catamaran

Raja Car Ferry

Boats
1 (04:00)
Fastest
1h 30m
From
€21
Boats used
Car + driver

Seatran Ferry

Boats
1 (05:00)
Fastest
1h 30m
From
€10

Piers at both ends

Where to go on the day, and what to expect when you land.

Nathon Pier

Koh Samui: The west-coast town pier. Lomprayah, Songserm and Boonsiri boats to Phangan and Tao; Seatran car ferries to Donsak.

Maenam (Lomprayah) Pier

Koh Samui: North coast. Lomprayah high-speed catamarans to Phangan and Tao.

Bangrak (Big Buddha) Pier

Koh Samui: North-east, near the airport. Lomprayah, Boonsiri, Lomlahkkhirin and Songserm boats, plus the Haad Rin Queen to Haad Rin.

Lipa Noi and Nathon car-ferry piers

Koh Samui: Raja and Seatran car ferries to Donsak on the mainland.

Raja Ferry Port

Donsak: Car ferries to Lipa Noi on Samui and to Thong Sala on Phangan.

Seatran Ferry Pier

Donsak: Car ferries to Nathon on Samui and Thong Sala on Phangan.

Piers named by the operators for this route: Lipa Noi Koh Samui, Na Thon Seatran Ferry Pier, Lomprayah Nathon Pier, Koh Samui Nathon Pier Catamaran and Na Thon Koh Samui Songserm → Donsak Raja Ferry, Donsak Seatran Ferry, Donsak Lomprayah Ferry and Surat Thani Donsak Boonsiri Office Catamaran.

Good to know before you go

Leaving Koh Samui

Koh Samui has its own airport and is the starting point for most trips to Koh Phangan and Koh Tao. It has several piers, and the right one depends on the operator, so check the departure pier on your ticket, not just “Koh Samui”.

Bangrak and Maenam are 10–20 minutes from the airport; Nathon is on the far side of the island. Allow for traffic in Chaweng.

Arriving in Donsak

Donsak is a small coastal town east of Surat Thani with the car-ferry terminals for Koh Samui and Koh Phangan. Raja Ferry and Seatran run large vehicle ferries roughly every hour in daytime.

Driving a hire car? Raja and Seatran take vehicles. Check your rental terms allow the car on a ferry.

Weather and season

Weather runs to a different clock from the Andaman: the Gulf is usually calmest from February to August. Expect rain and rougher crossings from October to December.

Koh Samui to Donsak ferry: questions

How long does the Koh Samui–Donsak crossing take?
Between 45 min – 1h 30m, depending on the boat. Most departures take about 1h 19m. The fastest on 25 Oct 2026 was Lomprayah at 45 min.
What does a Koh Samui to Donsak ticket cost?
On 25 Oct 2026, fares on 12Go started at about €8 per adult and went up to about €21 for the fastest or most comfortable boats. Prices change with the season and how close to departure you book; the booking page shows today's price before you pay.
When do the first and last boats leave Koh Samui for Donsak?
On 25 Oct 2026 the first boat left at 04:00 (Raja Ferry) and the last at 13:10. Times change between high and low season, so check the date you want to travel.
Which pier do I need in Koh Samui?
Boats leave from Lipa Noi Koh Samui, Na Thon Seatran Ferry Pier, Lomprayah Nathon Pier and Koh Samui Nathon Pier Catamaran and arrive at Donsak Raja Ferry, Donsak Seatran Ferry and Donsak Lomprayah Ferry. Your ticket names the exact pier, which can differ between operators.
Who operates boats on this crossing?
Lomprayah, Songserm, Songserm Express, Raja Ferry, Boonsiri High Speed Ferries and Raja Car Ferry and 1 more. You can compare and book all of them on 12Go.

More crossings

Koh Samui → Donsakfrom €8 · 45 min
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