Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 13:20 and arrives at Ubon Ratchathani Ubon Ratchathani Airport at 14:25.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 475 Km. So the average speed is roughly 438 Km.
The best day to arrive at Bangkok is Monday and it would be best to avoid Tuesday, as prices are on average 88% higher than on Monday. (Average prices, based on 376099 datapoints.)
We have a lot more statistics for flights DD 9316 and between Bangkok and Ubon Ratchathani.