Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 22:30 and arrives at Clark Clark International Airport at 00:40.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 822 Km. So the average speed is roughly 379 Km.
The best day to arrive at Hong Kong is Wednesday and it would be best to avoid Saturday, as prices are on average 130.7% higher than on Wednesday. (Average prices, based on 174219 datapoints.)
We have a lot more statistics for flights 5J 121 and between Hong Kong and Clark.