BY AIR
The most convenient way is by air and is exclusively run by Bangkok Airways.  The airport is located in Trat on the mainland near Laem Ngob.  There are daily scheduled services which take approx 45 minutes flight time.  Please visit the Bangkok Airways website www.bangkokair.com for an up-to-date schedule.   Alternatively you can contact them on the phone numbers below to get more information and reservations.

Bangkok Airways
Bangkok Office: +66(0) 2265 5678, +66(0) 2265 5555
Trat Airport Office: +66(0) 39 52 5767-8

BY CAR
One route out of Bangkok is to take Highway 3 on the Bangna-Trat road until you reach the Chonburi bypass.  Continue along this road, or take the elevated tollway, and then take the exit for Klaeng on Highway 344.  When you reach Klaeng, get back on to Highway 3 again (Highway 3 goes via Pattaya and Rayong, which you don't want).  Continue on through Khlung and, from here, about half-way to Trat, turn off on to Highway 3156, the Laem Ngop-Saen Tung road, which will take you along the coast to the ferry ports.

BY AIR-CONDITIONED BUS
There are several tour operators that leave from Bangkok’s eastern bus terminal located in Ekkamai on the Sukumhvit road which is accessible via the BTS skytrain.  The Government 99 bus is the most convenient way to Laem Ngop, where the ferry ports depart for Koh Chang, and takes approx 5 hours.  Buses leave Ekkamai twice daily at 07:45 and 09:00.  Other normal and air-conditioned buses leave Ekkamai almost every hour and stop in Trat where you will need to take a taxi or ‘songthaew’ to the ferry ports.  The alternative route is from Morchid – northern bus terminal.

BY VAN
Minibuses and full sized bus services pick up from the 'Khao Sarn' road. These services can be booked by travel agents in this area.  A one way trip costs around 500-600 THB and may include ferry crossing.

FERRY PORTS
Ferries depart either from Ao Thammachat Pier, or Koh Chang Centre Point.  Landings are between 07:30am - 4:30pm, with a travel time of 30 minutes.  Private vehicles can be loaded onto the ferry.  Please note that vehicles used on the island should be 4 wheel drive vehicles as road conditions are bumpy and there are steep slopes to be negotiated.  From the landing on Koh Chang there are songthaew services to various points.  Fares should be settled beforehand with the driver.