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 Tuesday and it would be best to avoid Saturday, as prices are on average 312.48% higher than on Tuesday. (Average prices, based on 4165307 datapoints.)
We have a lot more statistics for flights HX 283 and between Taipei and Hong Kong.