Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 17:05 and arrives at Surat Thani Surat Thani International Airport at 18:20.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 200 Km. So the average speed is roughly 160 Km.
The best day to arrive at Bangkok is Monday and it would be best to avoid Sunday, as prices are on average 140.54% higher than on Monday. (Average prices, based on 52261 datapoints.)
We have a lot more statistics for flights VZ 352 and between Bangkok and Surat Thani.