Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 17:40 and arrives at Khon Kaen Khon Kaen Airport at 18:50.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 249 Km. So the average speed is roughly 213 Km.
The best day to arrive at Bangkok is Monday and it would be best to avoid Tuesday, as prices are on average 84.37% higher than on Monday. (Average prices, based on 259493 datapoints.)
We have a lot more statistics for flights FD 3256 and between Bangkok and Khon Kaen.
