Flight Noi Bai International Airport departs from Hanoi Noi Bai International Airport at 07:35 and arrives at Singapore Changi Airport at 11:55.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 599 Km. So the average speed is roughly 180 Km.
There is an 1 hour time difference between Hanoi and Singapore
The best month to arrive at Hanoi is June and the most expensive month to fly is February. (Average prices, based on 421 datapoints.)
The best day to arrive at Hanoi is Monday and it would be best to avoid Friday, as prices are on average 36.61% higher than on Monday. (Average prices, based on 183184 datapoints.)
We have a lot more statistics for flights GA 661 and between Hanoi and Singapore.