Flight Chubu Centrair International Airport departs from Nagoya Chubu Centrair International Airport at 09:30 and arrives at Hanoi Noi Bai International Airport at 12:45.
The flighttime is about 5h 15m. The distance travelled ("as the bird flies"): 3515 Km. So the average speed is roughly 670 Km.
There is an 2 hour time difference between Nagoya and Hanoi