I have the following timetables for these journeys:

Suvarnabhumi Bus terminal to trat centre ; Departures to Trat city from the Airport at 6:40, 10:10, 11:40, 13:10, 16:10, 18:10, 8:25 and 10:25. and Suvarnabhuni airport to Leam Ngob;Bus directly to Laem Ngop arrives at the airport's Bus terminal at 08:15 and 10:15.

Can anyone confirm if this is still correct please? Thanks in advance.

there should be more-I think these are only the times from 1 comp. In the morning around ev hour-simply go over to BUStermnl and open mouth+eyes, find window, ASK. Most likely the next bus will be shown on a card with price.

A site like whitesandspublications or whitesands (koh chang) does a 3-monthly travellers aimed booklet-also on web and has the latest (or if they are not too lazy to update) times for all buses BKK-Trat/Ferry. There are now also 2/3 daily minivans from airpt direct on to Koh Chang-but these cost. When arr on Swampy-first go down to lowest floor and find the busstands-maybe there is something at your fancy. if not-take shuttle bus to BUSDtermlnl

oh- I really do not see what is the advantage of having a full list of deptrs written/printed down-after all you never know if they are not full already (these buses come starting Mochit)- so if thats the case, simply take (people nowadays seem to have lost any sense of finding alternatives) the Chantaburi bus and change there onward-nearly as fast. Look on a decent map to find out why.

After a long flight your really want to play Russia Roulette with bus schedules and times and hope for the best ? About 4 - 5 hours. Car and driver, Fluent English speaker, all fees and tolls is about 2000 Bt. door to door