Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 22:25 and arrives at Hong Kong Hong Kong International Airport at 23:35.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 83 Km. So the average speed is roughly 71 Km.
The best day to arrive at Guangzhou is Tuesday and it would be best to avoid Friday, as prices are on average 140.33% higher than on Tuesday. (Average prices, based on 133955 datapoints.)
We have a lot more statistics for flights KA 789 and between Guangzhou and Hong Kong.