Flight Samui International Airport departs from Koh Samui Samui International Airport at 11:05 and arrives at Singapore Changi Airport at 14:05.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 475 Km. So the average speed is roughly 238 Km.
There is an 1 hour time difference between Koh Samui and Singapore
The best day to arrive at Koh Samui is Tuesday and it would be best to avoid Thursday, as prices are on average 183.2% higher than on Tuesday. (Average prices, based on 2183616 datapoints.)
We have a lot more statistics for flights TR 643 and between Koh Samui and Singapore.