Flight Haneda Airport departs from Tokyo Haneda Airport at 09:55 and arrives at Hong Kong Hong Kong International Airport at 13:30.
The flighttime is about 4h 35m. The distance travelled ("as the bird flies"): 2992 Km. So the average speed is roughly 653 Km.
There is an 1 hour time difference between Tokyo and Hong Kong
The best day to arrive at Tokyo is Saturday and it would be best to avoid Tuesday, as prices are on average 128.08% higher than on Saturday. (Average prices, based on 1105638 datapoints.)
We have a lot more statistics for flights JL 29 and between Tokyo and Hong Kong.