Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 18:45 and arrives at Beijing Beijing Capital International Airport at 22:15.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 890 Km. So the average speed is roughly 254 Km.
The best day to arrive at Hong Kong is Saturday and it would be best to avoid Wednesday, as prices are on average 602.4% higher than on Saturday. (Average prices, based on 210632 datapoints.)
We have a lot more statistics for flights CX 344 and between Hong Kong and Beijing.
