Flight Narita International Airport departs from Tokyo Narita International Airport at 16:25 and arrives at Hanoi Noi Bai International Airport at 20:55.
The flighttime is about 6h 30m. The distance travelled ("as the bird flies"): 3920 Km. So the average speed is roughly 603 Km.
There is an 2 hour time difference between Tokyo and Hanoi
