Flight Noi Bai International Airport departs from Hanoi Noi Bai International Airport at 12:45 and arrives at Bangkok Suvarnabhumi Airport at 14:45.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 593 Km. So the average speed is roughly 296 Km.
The best day to arrive at Hanoi is Tuesday and it would be best to avoid Sunday, as prices are on average 62.23% higher than on Tuesday. (Average prices, based on 2174823 datapoints.)
We have a lot more statistics for flights VN 615 and between Hanoi and Bangkok.