Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 21:10 and arrives at Taipei Taoyuan International Airport at 22:55.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 826 Km. So the average speed is roughly 472 Km.
The best day to arrive at Hong Kong is Tuesday and it would be best to avoid Sunday, as prices are on average 86.93% higher than on Tuesday. (Average prices, based on 3994223 datapoints.)
We have a lot more statistics for flights BR 858 and between Hong Kong and Taipei.