Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 14:15 and arrives at Chiang Rai Mae Fah Luang Chiang Rai International Airport at 15:40.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 144 Km. So the average speed is roughly 102 Km.
The best day to arrive at Bangkok is Tuesday and it would be best to avoid Friday, as prices are on average 130.92% higher than on Tuesday. (Average prices, based on 2104520 datapoints.)
We have a lot more statistics for flights DD 8718 and between Bangkok and Chiang Rai.