Flight Haneda Airport departs from Tokyo Haneda Airport at 01:55 and arrives at Hong Kong Hong Kong International Airport at 06:15.
The flighttime is about 5h 20m. The distance travelled ("as the bird flies"): 2992 Km. So the average speed is roughly 561 Km.
There is an 1 hour time difference between Tokyo and Hong Kong
The best day to arrive at Tokyo is Wednesday and it would be best to avoid Saturday, as prices are on average 239.1% higher than on Wednesday. (Average prices, based on 1239501 datapoints.)
We have a lot more statistics for flights UO 629 and between Tokyo and Hong Kong.
