Getting in to Koh Chang
Koh Chang is the largest island in Trat Province. Trat Airport is operated by Bangkok Airways, and the airline is the only operator flying to Trat Airport out of Bangkok’s Suvarnabhumi Airport. International arrivals must be through Suvarnabhumi Airport, where passengers can fly to Trat Airport before continuing on to Koh Chang.
You cannot directly access Koh Chang by flight. You must take a ferry or a private boat from Trat Airport to get to Koh Chang. Bangkok Airways offers 3 flights a day (08:30, 11:40 and 17:05) from the Suvarnabhumi Airport to Trat (roughly 1 hour flight), costing around 3500 Baht.
There are multiple services allowing passengers to get from Trat Airport to the island of Koh Chang. Minibuses are an inexpensive and often used mode of transportation from the airport to the ferry pier, where passengers will need to get on a ferry to reach their island destination. You can always avoid the hassle of mass public transportation (buses) by grabbing a taxi from any of the surrounding airports. A trip from Bangkok to the ferries in Trat will cost you around 3500 baht.
There are currently no train services bringing passengers near Trat Province.
Buses leave from the Chanthaburi airport, the Suvarnabhumi airport, and the airport bus terminus (you will need to take the shuttle from the airport to the airport bus terminus) that take you to Trat.
Vehicle ferries are also available at the Laem Ngop pier in Trat, as well as the Centrepoint pier for those who wish to transport their automobiles to the island.
The Laem Ngop pier in Trat is where most ferries to Koh Chang operate. Ferries leave from one of three piers every half hour from 7am-7pm.