Flight Kansai International Airport departs from Osaka Kansai International Airport at 12:55 and arrives at Hong Kong Hong Kong International Airport at 16:00.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 2482 Km. So the average speed is roughly 608 Km.
There is an 1 hour time difference between Osaka and Hong Kong
The best day to arrive at Osaka is Sunday and it would be best to avoid Friday, as prices are on average 373.32% higher than on Sunday. (Average prices, based on 2156673 datapoints.)
We have a lot more statistics for flights UO 851 and between Osaka and Hong Kong.