Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 04:10 and arrives at Bangkok Suvarnabhumi Airport at 10:10.
The flighttime is about 4h 30m. The distance travelled ("as the bird flies"): 3097 Km. So the average speed is roughly 688 Km.
There is an 1.5 hour time difference between Mumbai and Bangkok
The best day to arrive at Mumbai is Monday and it would be best to avoid Sunday, as prices are on average 99.67% higher than on Monday. (Average prices, based on 107743 datapoints.)
We have a lot more statistics for flights SG 81 and between Mumbai and Bangkok.