Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 07:05 and arrives at Wuhan Wuhan Tianhe International Airport at 11:35.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 1598 Km. So the average speed is roughly 457 Km.
There is an 1 hour time difference between Bangkok and Wuhan