Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 20:35 and arrives at Bangalore Kempegowda International Airport at 00:30.
The flighttime is about 6h 25m. The distance travelled ("as the bird flies"): 4018 Km. So the average speed is roughly 626 Km.
There is an 2.5 hour time difference between Hong Kong and Bangalore