Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 18:30 and arrives at Udon Thani Udon Thani International Airport at 19:30.
The flighttime is about 1h 00m. The distance travelled ("as the bird flies"): 255 Km. So the average speed is roughly 255 Km.
The best day to arrive at Bangkok is Monday and it would be best to avoid Tuesday, as prices are on average 122.65% higher than on Monday. (Average prices, based on 402595 datapoints.)
We have a lot more statistics for flights DD 9218 and between Bangkok and Udon Thani.