Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 18:25 and arrives at Krabi Krabi International Airport at 19:50.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 223 Km. So the average speed is roughly 157 Km.
The best day to arrive at Bangkok is Monday and it would be best to avoid Friday, as prices are on average 90.02% higher than on Monday. (Average prices, based on 1412963 datapoints.)
We have a lot more statistics for flights TG 249 and between Bangkok and Krabi.
