Flight Noi Bai International Airport departs from Hanoi Noi Bai International Airport at 14:00 and arrives at Shanghai Pudong International Airport at 18:30.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 1828 Km. So the average speed is roughly 522 Km.
There is an 1 hour time difference between Hanoi and Shanghai