Flight Chongqing Jiangbei International Airport departs from Chongqing Chongqing Jiangbei International Airport at 11:35 and arrives at Hong Kong Hong Kong International Airport at 13:50.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 856 Km. So the average speed is roughly 685 Km.
There is an 1 hour time difference between Chongqing and Hong Kong