Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 08:30 and arrives at Tokyo Narita International Airport at 14:15.
The flighttime is about 4h 45m. The distance travelled ("as the bird flies"): 3064 Km. So the average speed is roughly 645 Km.
There is an 1 hour time difference between Hong Kong and Tokyo
The best day to arrive at Hong Kong is Saturday and it would be best to avoid Monday, as prices are on average 338.3% higher than on Saturday. (Average prices, based on 8607072 datapoints.)
We have a lot more statistics for flights HX 604 and between Hong Kong and Tokyo.
