Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 14:25 and arrives at Yangon Yangon International Airport at 16:20.
The flighttime is about 3h 25m. The distance travelled ("as the bird flies"): 1980 Km. So the average speed is roughly 580 Km.
There is an 1.5 hour time difference between Hong Kong and Yangon