Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 17:15 and arrives at Krabi Krabi International Airport at 18:45.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 211 Km. So the average speed is roughly 141 Km.
The best day to arrive at Bangkok is Thursday and it would be best to avoid Wednesday, as prices are on average 64.1% higher than on Thursday. (Average prices, based on 2134624 datapoints.)
We have a lot more statistics for flights FD 3221 and between Bangkok and Krabi.