Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 18:15 and arrives at Taipei Taoyuan International Airport at 20:05.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 826 Km. So the average speed is roughly 451 Km.
The best day to arrive at Hong Kong is Thursday and it would be best to avoid Wednesday, as prices are on average 123.6% higher than on Thursday. (Average prices, based on 3939567 datapoints.)
We have a lot more statistics for flights CX 402 and between Hong Kong and Taipei.