From Phuket

From Phuket you can access Koh Lanta by public ferry. The ferry runs twice a day at 8:00 AM. and 13:00 PM. It takes totally 4 hours to reach Koh Lanta and the ticket price is around 750 THB. per person. The pier is just a few kilometers from downtown Phuket.

Notice this ferry only runs during high season from the beginning of November until May.