Flight Narita International Airport departs from Tokyo Narita International Airport at 21:30 and arrives at Hong Kong Hong Kong International Airport at 02:00.
The flighttime is about 5h 30m. The distance travelled ("as the bird flies"): 3064 Km. So the average speed is roughly 557 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 Friday, as prices are on average 835.6% higher than on Sunday. (Average prices, based on 16176076 datapoints.)
We have a lot more statistics for flights JL 7043 and between Tokyo and Hong Kong.