Flight Wuhan Tianhe International Airport departs from Wuhan Wuhan Tianhe International Airport at 23:55 and arrives at Bangkok Suvarnabhumi Airport at 03:20.
The flighttime is about 4h 25m. The distance travelled ("as the bird flies"): 1586 Km. So the average speed is roughly 359 Km.
There is an 1 hour time difference between Wuhan and Bangkok