Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 21:05 and arrives at Hong Kong Hong Kong International Airport at 22:50.
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 Thursday and it would be best to avoid Saturday, as prices are on average 181.36% higher than on Thursday. (Average prices, based on 3516219 datapoints.)
We have a lot more statistics for flights CI 921 and between Taipei and Hong Kong.
NZD