Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 23:15 and arrives at Singapore Changi Airport at 02:50.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 477 Km. So the average speed is roughly 185 Km.
There is an 1 hour time difference between Bangkok and Singapore
The best day to arrive at Bangkok is Tuesday and it would be best to avoid Sunday, as prices are on average 136.74% higher than on Tuesday. (Average prices, based on 3585805 datapoints.)
We have a lot more statistics for flights TR 867 and between Bangkok and Singapore.