Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 08:00 and arrives at Singapore Changi Airport at 11:15.
The flighttime is about 2h 15m. The distance travelled ("as the bird flies"): 462 Km. So the average speed is roughly 205 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 66.62% higher than on Thursday. (Average prices, based on 9248049 datapoints.)
We have a lot more statistics for flights TG 403 and between Bangkok and Singapore.
SGD
