Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 19:00 and arrives at Singapore Changi Airport at 22:20.
The flighttime is about 2h 20m. The distance travelled ("as the bird flies"): 462 Km. So the average speed is roughly 198 Km.
There is an 1 hour time difference between Bangkok and Singapore
The best day to arrive at Bangkok is Thursday and it would be best to avoid Monday, as prices are on average 77.92% higher than on Thursday. (Average prices, based on 11752071 datapoints.)
We have a lot more statistics for flights TG 401 and between Bangkok and Singapore.
