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The crossing from Koh Samui to Koh Tao operates multiple times daily, but departure windows, transit speeds, and operator reliability vary enough to shape your entire day. This guide walks through the current timetables, vessel types, and booking considerations so you board the right crossing at the right pier.
Quick answer
Ferries depart Koh Samui for Koh Tao between 08:30 and 15:00 daily, with most services clustered in the morning. High-speed catamarans complete the crossing in 90 minutes, while standard car ferries take 2.5 to 3 hours depending on sea conditions. All departures leave from either Bangrak Pier or Maenam Pier on Samui's north coast, arriving at Mae Haad Pier on Koh Tao.
Three major ferry operators share the Koh Samui to Koh Tao route, each running between one and three daily services depending on season and demand. Lomprayah High Speed Catamaran holds the largest market share, departing Maenam Pier at 08:00 and 13:00 year-round with an additional 15:00 service added during Thai holidays and European winter. Seatran Discovery operates a combined bus-ferry service from central Samui hotels to Bangrak Pier, with morning and early-afternoon crossings that appeal to travelers coming directly from the airport. Songserm, the oldest operator on the route, runs a slower but cheaper car ferry from Bangrak at 09:30 daily, favored by budget travelers and anyone moving diving equipment or heavy luggage between islands. Transit time depends as much on vessel type as on routing. High-speed catamarans slice the Gulf of Thailand in roughly 90 minutes, running a direct line northeast from Samui's coast to Mae Haad. Standard car ferries, built for stability rather than speed, take a more conservative route and require 2.5 to 3 hours depending on swell and wind direction. During monsoon season—October through early December—even the fast boats add 15 to 20 minutes to published schedules as captains navigate around weather fronts moving south from the mainland. Booking windows tighten during peak season. December through February and July through August see advance bookings fill the 08:00 and 08:30 departures a week out, especially on weekends when Bangkok residents travel south for long holidays. Walk-up availability persists on midday and afternoon crossings even during high season, though seat selection narrows to interior rows away from air-conditioned zones. Most operators release inventory 60 days ahead and apply dynamic pricing that rises as departure dates approach, rewarding travelers who lock schedules early. Pier logistics matter more than the timetable suggests. Lomprayah's Maenam Pier sits 15 kilometers west of Chaweng, requiring a 25-minute taxi ride that costs 400 to 500 baht depending on negotiation skill. Bangrak Pier lies closer to the airport and main hotel zones, shortening transfer time but offering fewer departure slots. Check-in closes 30 minutes before departure at all piers, and late arrivals forfeit their booking with no refund. The koh samui to koh tao ferry schedule remains stable across the year, but individual sailing times shift by 15 to 30 minutes in May and November when operators rotate vessels for hull maintenance and safety inspections.
“High-speed catamarans complete the crossing in 90 minutes, while standard car ferries take 2.5 to 3 hours depending on sea conditions.”
Ferries connecting Koh Samui to Koh Tao typically depart from Maenam Pier or Nathon Pier. These services provide direct transit to Mae Haad Pier on Koh Tao, which serves as the primary gateway to the island and Koh Nang Yuan.
Lomprayah High Speed Catamaran from Maenam Pier
Songserm Ferry from Nathon Pier
Seatran Discovery from Bangrak Pier
Arrive at your departure pier at least 30 to 45 minutes before the scheduled ferry time to ensure timely boarding. Once you reach Koh Tao, local longtail boats are available at Mae Haad Pier to complete the transfer to Koh Nang Yuan.
Koh Nang Yuan maintains consistent operating hours throughout the week. Visitors can access the island daily during the following times.
Visitors to Koh Nang Yuan are required to pay a mandatory conservation fee upon arrival. This fee supports the maintenance and protection of the local marine environment.
Verdict: Every visitor pays a flat rate of 250 THB, regardless of age or residency status.
Prepare these essentials before your ferry crossing to Koh Tao and Koh Nang Yuan.
Everything you need to know about koh samui to koh tao ferry schedule
The koh samui to koh tao ferry schedule is subject to seasonal adjustments and sea conditions. Visitors should check the latest departures shortly before their travel date to ensure accuracy for their boat trip. Operators typically publish updated timetables on their official booking platforms for the Gulf of Thailand routes. Travelers should aim to secure their seats in advance to ensure availability during peak travel months. Planning your itinerary around the koh samui to koh tao ferry schedule helps in coordinating onward travel to Koh Nang Yuan. Arriving at the pier at least 30 minutes before departure is standard procedure for most maritime services. Every visitor to the private island of Koh Nang Yuan must pay a 250 THB conservation fee per person. This fee is collected upon arrival to support the maintenance and protection of the local marine environment. Several high-speed catamaran and ferry companies operate routes between the islands. These services provide daily connections, typically departing from Phetcharat Pier or Maenam Pier in Koh Samui. It is advised to arrive at Koh Nang Yuan between 09:30 and 11:00. Visiting during this specific window allows you to avoid the busiest crowds and manage the afternoon heat effectively. High winds and rough seas in the Gulf of Thailand may occasionally cause operators to modify or cancel departures. Always monitor weather advisories and company notifications if you have already planned your trip using the boat schedule. Transit times vary by vessel type, with high-speed catamarans usually taking between 90 and 120 minutes. The duration can fluctuate based on the specific ferry company and the number of intermediate stops at Koh Phangan. While some passengers purchase tickets at the pier, booking through authorized channels is recommended to guarantee a spot. Relying on digital reservations provides better flexibility and clearer communication regarding potential schedule changes.