Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 22:35 and arrives at Clark Clark International Airport at 00:30.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 822 Km. So the average speed is roughly 429 Km.
The best day to arrive at Hong Kong is Thursday and it would be best to avoid Saturday, as prices are on average 128.14% higher than on Thursday. (Average prices, based on 244136 datapoints.)
We have a lot more statistics for flights 5J 121 and between Hong Kong and Clark.
