Flight Narita International Airport departs from Tokyo Narita International Airport at 18:00 and arrives at Hong Kong Hong Kong International Airport at 22:20.
The flighttime is about 5h 20m. The distance travelled ("as the bird flies"): 3064 Km. So the average speed is roughly 574 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 Friday, as prices are on average 103.79% higher than on Tuesday. (Average prices, based on 15810403 datapoints.)
We have a lot more statistics for flights CX 505 and between Tokyo and Hong Kong.
