Koh Tao to Koh Samui takes approximately 2.5 hours by high-speed catamaran — a popular onward move after a diving trip on Koh Tao. Most boats stop at Koh Phangan en route, so you can combine both islands in one journey. This guide covers operators, prices, and arrival tips.
🎟 [Travelpayouts 12Go widget: Koh Tao → Koh Samui ferry]
Lomprayah or Seatran Speedboat
Lomprayah and Seatran Discovery operate fast catamarans from Mae Haad pier (Koh Tao) to Na Thon or Maenam pier (Koh Samui) — approximately 2–2.5 hours, stopping at Thong Sala (Koh Phangan) en route, fares from ~450–600 THB (~$13–17 USD). Multiple daily departures. Lomprayah arrives at Maenam on Koh Samui\’s north coast; Seatran at Na Thon on the west coast. From the pier, songthaew or Grab to your accommodation.
🎟 [Travelpayouts 12Go widget: Koh Tao → Koh Samui Lomprayah]
ℹ️ If you\’re flying out of Koh Samui Airport, take the earliest available boat from Koh Tao and allow at least 4 hours between boat arrival and flight departure — pier transfers to the airport take 30–60 minutes depending on traffic and which pier you arrive at. Koh Samui Airport is in the northeast of the island.
Where to Stay on Koh Samui
🏨 [Travelpayouts Hotellook/Agoda widget: Hotels on Chaweng Beach, Koh Samui]
🏨 [Travelpayouts Hotellook/Agoda widget: Hotels on Lamai Beach, Koh Samui]
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