Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 16:55 and arrives at Hong Kong Hong Kong International Airport at 19:00.
The flighttime is about 2h 05m. The distance travelled ("as the bird flies"): 826 Km. So the average speed is roughly 396 Km.
The best day to arrive at Taipei is Saturday and it would be best to avoid Sunday, as prices are on average 135.79% higher than on Saturday. (Average prices, based on 4224798 datapoints.)
We have a lot more statistics for flights CI 919 and between Taipei and Hong Kong.
