Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 18:30 and arrives at Singapore Changi Airport at 21:55.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 462 Km. So the average speed is roughly 191 Km.
There is an 1 hour time difference between Bangkok and Singapore
The best day to arrive at Bangkok is Saturday and it would be best to avoid Thursday, as prices are on average 146.75% higher than on Saturday. (Average prices, based on 13536152 datapoints.)
We have a lot more statistics for flights VA 5721 and between Bangkok and Singapore.
