Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 16:00 and arrives at Kota Kinabalu Kota Kinabalu International Airport at 20:00.
The flighttime is about 3h 00m. The distance travelled ("as the bird flies"): 1736 Km. So the average speed is roughly 579 Km.
There is an 1 hour time difference between Bangkok and Kota Kinabalu