Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 11:55 and arrives at Hanoi Noi Bai International Airport at 13:50.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 593 Km. So the average speed is roughly 309 Km.
The best day to arrive at Bangkok is Sunday and it would be best to avoid Monday, as prices are on average 119.26% higher than on Sunday. (Average prices, based on 1127908 datapoints.)
We have a lot more statistics for flights VN 610 and between Bangkok and Hanoi.