Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 21:45 and arrives at Hong Kong Hong Kong International Airport at 23:45.
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 Wednesday and it would be best to avoid Sunday, as prices are on average 45.12% higher than on Wednesday. (Average prices, based on 3446773 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 116 datapoints.)
We have a lot more statistics for flights HX 283 and between Taipei and Hong Kong.