Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 07:45 and arrives at Hanoi Noi Bai International Airport at 09:35.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 593 Km. So the average speed is roughly 323 Km.
The best day to arrive at Bangkok is Sunday and it would be best to avoid Wednesday, as prices are on average 296.33% higher than on Sunday. (Average prices, based on 1126942 datapoints.)
We have a lot more statistics for flights TG 560 and between Bangkok and Hanoi.