Flight Narita International Airport departs from Tokyo Narita International Airport at 18:30 and arrives at Hong Kong Hong Kong International Airport at 22:20.
The flighttime is about 4h 50m. The distance travelled ("as the bird flies"): 3064 Km. So the average speed is roughly 634 Km.
There is an 1 hour time difference between Tokyo and Hong Kong
The best day to arrive at Tokyo is Tuesday and it would be best to avoid Monday, as prices are on average 80.73% higher than on Tuesday. (Average prices, based on 16325693 datapoints.)
We have a lot more statistics for flights CX 505 and between Tokyo and Hong Kong.
