Buses to Trat are essential for ultimately getting to Koh Chang and the largest number of the visitors choose this mode as no budget flights fly to Trat (as of 2006). The five- to six-hour journey commences at the Southern Bus Terminal near the Ekkamai skytrain terminal in Bangkok and buses depart almost hourly. They will leave you at the bus terminal in Trat from where you will need at least thirty minutes to get to the Laem Ngop pier.