Flight Samui International Airport departs from Koh Samui Samui International Airport at 11:45 and arrives at Bangkok Suvarnabhumi Airport at 13:00.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 113 Km. So the average speed is roughly 90 Km.
The best day to arrive at Koh Samui is Sunday and it would be best to avoid Wednesday, as prices are on average 409.66% higher than on Sunday. (Average prices, based on 1300610 datapoints.)
We have a lot more statistics for flights PG 130 and between Koh Samui and Bangkok.
