Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 13:45 and arrives at Hong Kong Hong Kong International Airport at 15:45.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 826 Km. So the average speed is roughly 413 Km.
The best day to arrive at Taipei is Monday and it would be best to avoid Tuesday, as prices are on average 85.74% higher than on Monday. (Average prices, based on 3428288 datapoints.)
We have a lot more statistics for flights CX 485 and between Taipei and Hong Kong.