Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 19:00 and arrives at Hong Kong Hong Kong International Airport at 20:45.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 826 Km. So the average speed is roughly 472 Km.
The best day to arrive at Taipei is Friday and it would be best to avoid Saturday, as prices are on average 183.56% higher than on Friday. (Average prices, based on 3459786 datapoints.)
We have a lot more statistics for flights HX 1835 and between Taipei and Hong Kong.