A Koh Samui tour will not collect you on Koh Phangan by default. Some boats do leave from Koh Phangan in season. The other route is to sleep on Koh Samui the night before your tour.
Check the boat, the pier and the days it runs. Ask when it returns and whether your hotel transfer on Koh Phangan is part of the deal.
Do not chain a same-morning ferry to a tour check-in. One delay and the boat leaves without you. Stay on Koh Samui the night before instead. It is the safer plan by far.
A private boat may be able to collect your group. Ask for a quote first and get the pickup confirmed in writing.
Morning ferries between Thongsala and Koh Samui run frequently in high season, but tour check-in happens early enough that a same-morning connection only works when everything runs to the minute, and one delayed boat turns a non-refundable tour into an expensive lesson. Staying on Koh Samui the night before removes the risk entirely. It also usually costs less than the tour itself, which puts the decision in perspective.
Use the Ang Thong tour comparison to understand boat styles, then contact us before paying when your departure island is Koh Phangan.
Only when you can meet its confirmed Koh Samui pickup or pier. The listing does not automatically include an inter-island transfer.
Schedules can be seasonal and weather-dependent. Verify the date rather than relying on an old timetable.
A direct tour may allow it. When travelling through Koh Samui, check the final public-ferry departure and leave a large buffer.