Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 11:25 and arrives at Chiang Mai Chiang Mai International Airport at 12:40.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 204 Km. So the average speed is roughly 163 Km.
The best day to arrive at Bangkok is Sunday and it would be best to avoid Saturday, as prices are on average 47.72% higher than on Sunday. (Average prices, based on 12758829 datapoints.)
We have a lot more statistics for flights AK 3447 and between Bangkok and Chiang Mai.