It is highly recommended to book tickets in advance directly on the ferry websites listed bellow.
Koh Phangan to Surat Thani and back
Seatran Ferries and Raja Ferries have direct service from Donsak Pier (Surat Thani) to Thong Sala Pier at Koh Phangan and Back. The current price is 240 Baht one way per person. And you can take a vehicle with you for an additional price.
Raja Ferry starts at Donsak at 05:00, 08:00, 11:00, 14:00 and 18:00.
Seatran starts at 05:30, 08:30, 11:30, 14:30 and 17:30.
And on the way back from Koh Phangan to Donsak
Seatran starts from Thong Sala Pier at 08:30, 11:30, 14:30, 14:30 and 17:30.
Raja Ferry from Thong Sala Pier at 05:00, 08:00, 11:00, 14:00 and 17:30.
The trip takes around 2:30.
Donsak – Chumphon
There is Lomprayah Speed Catamaran service from Koh Phangan to Chumphon (with ability to buy combined bus ticket to Bangkok) and to Surat Thani as well.
Boat is departing to Koh Phangan from Chumphon at 07:00 and 13:00 and to Chumphon from Koh Phangan at 08:30 and 13:00. The trip takes about 4 hours.
If you want to travel to Donsak the boat is departing at 08:00 and 11:00 from Koh Phangan and return trip starts at 11:00 and 14:30 daily. Travel time is about 2:30.