Flight Haneda Airport departs from Tokyo Haneda Airport at 02:20 and arrives at Hong Kong Hong Kong International Airport at 06:00.
The flighttime is about 4h 40m. The distance travelled ("as the bird flies"): 2992 Km. So the average speed is roughly 641 Km.
There is an 1 hour time difference between Tokyo and Hong Kong
The best day to arrive at Tokyo is Sunday and it would be best to avoid Tuesday, as prices are on average 223.33% higher than on Sunday. (Average prices, based on 1497362 datapoints.)
We have a lot more statistics for flights UO 629 and between Tokyo and Hong Kong.
