Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 07:25 and arrives at Hong Kong Hong Kong International Airport at 09:15.
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 Taipei is Thursday and it would be best to avoid Tuesday, as prices are on average 17.64% higher than on Thursday. (Average prices, based on 3246002 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 131 datapoints.)
We have a lot more statistics for flights CI 601 and between Taipei and Hong Kong.