FerryConnect

Thailand

Koh Samui → Railay

Lomprayah sells a joint bus-and-boat ticket from Koh Samui to Railay: 1 departure time a day (11:45), taking 6h 15m door to door via Donsak and Krabi. One ticket covers the coach or van and the catamaran or speedboat.

⏱ About 6h 15m (bus + boat)🚢 1 operator📅 Lomprayah joint ticket: 1 departure time a day (11:45)
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Koh Samui to Railay ferry at a glance

The ferry from Koh Samui to Railay takes About 6h 15m (bus + boat) across the Gulf of Thailand, operated by Lomprayah. It is a foot-passenger service; vehicles are not carried. Typical frequency: lomprayah joint ticket: 1 departure time a day (11:45).

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 2026-10-09.

Sources: lomprayah.com · How we verify

Return crossing: Railay to Koh Samui

Lomprayah also sails Railay to Koh Samui, taking About 6h 15m (bus + boat).

Koh Samui to Railay ferry timetable & sailing pattern

1 joint bus + boat departure time a day (Lomprayah 2026 timetable, effective 25 August 2026)

Published departure times

  • Koh Samui → Railay: 11:45 → 18:00 catamaran + bus (฿1,500)

Timetables change by season and date. Check exact departures for your travel date on the official timetable.

Official Lomprayah timetable →Check prices & book on 12Go →

Source: Lomprayah 2026 timetable (operator). Verified 2026-10-09.

Maritime Crossing Route Map

Interactive sea passage between Koh Samui and Railay

📐 19 Nautical Miles
Koh Samui⇄Railay
⏱ About 6h 15m (bus + boat) · 📐 19 nm
© OpenFreeMap / OSM
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Operators on This Route

OperatorCrossing TimeVessels
LomprayahAbout 6h 15m door to doorHigh-speed catamaran, Coach / van

Route Features

🚗

Vehicles

Foot passengers only

🚶

Foot Passengers

Walk-on passengers welcome

🐕

Pets

No pet facilities

📐

Distance

19 nautical miles

Getting There & Onward Transport

  • The road and sea legs connect at Donsak Pier (Surat Thani)
  • Lomprayah’s timetable also lists hotel pick-up / drop-off versions of many of these trips (marked “Any Hotel”) at a higher fare

Tips for the Koh Samui to Railay Crossing

  • One Lomprayah joint ticket covers both the road and the sea legs; the times here are from its 2026 timetable (effective 25 August 2026), so check the operator’s site before travelling.

Related Ferry Crossings

Also sails from Koh SamuiSurat Thani (Donsak) → Koh Samui45m – 1h 30m · Seatran Ferry, Raja Ferry, LomprayahAlso sails from Koh SamuiKoh Samui → Koh Phangan20m – 1h · Lomprayah, Seatran Discovery, Boonsiri High Speed Ferries, Songserm, Raja FerryAlso sails from Koh SamuiKoh Samui → Koh Tao1h 25m – 2h 30m (longer with a change on Koh Phangan or on the slow ferry) · Lomprayah, Boonsiri High Speed Ferries, SongsermAlso sails from Koh SamuiChumphon → Koh Samui3h 45m – 4h 45m · Lomprayah, Boonsiri High Speed FerriesAlso sails from Koh SamuiSurat Thani → Koh Samui1h 30m – 2h · LomprayahAlso sails from Koh SamuiBangkok → Koh Samui14h – 14h 15m (bus + boat) · Lomprayah
⛴ All ferries from Koh Samui⛴ All ferries from Railay🌊 Gulf of Thailand ferries🗺 All ferries in Thailand🔎 Search all routes

Frequently Asked Questions

How long does it take from Koh Samui to Railay?
6h 15m on Lomprayah’s joint ticket: 11:45 → 18:00 (catamaran + bus). Times from Lomprayah’s 2026 timetable, effective 25 August 2026.
How much is the Koh Samui to Railay joint ticket?
From ฿1,500 per person on Lomprayah’s 2026 timetable; prices on partner sites such as 12Go can differ.
Is Koh Samui to Railay a direct ferry?
No. It is a combined bus (or van) and boat trip on one Lomprayah ticket; the sea leg is Lomprayah’s boat between Donsak Pier (Surat Thani) and Koh Samui (about 19 nautical miles), and the rest is by road (with a further boat transfer to Railay).
How often does the Koh Samui to Railay ferry sail?
1 joint bus + boat departure time a day (Lomprayah 2026 timetable, effective 25 August 2026). This is the pattern published in the Lomprayah 2026 timetable (operator) (checked 2026-10-09); confirm exact departure times on the official timetable before you travel.
Which ferry companies sail from Koh Samui to Railay?
Lomprayah operates this route. Compare sailing times and ticket types before booking, as they often differ between operators.
Can I take my car on the Koh Samui to Railay ferry?
No. This is a foot-passenger service and vehicles are not carried. Use parking near the departure pier or public transport to reach it.
Can I take the Koh Samui to Railay ferry as a foot passenger?
Yes. Foot passengers can travel on this route. Allow time to reach the passenger terminal and check the operator’s check-in closing time.
Are dogs and pets allowed on the Koh Samui to Railay ferry?
This route has no dedicated pet facilities. Assistance dogs are normally carried, but confirm with the operator before travelling.
How far is Koh Samui from Railay by ferry?
The sea crossing is about 19 nautical miles (roughly 35 km).