Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 07:30 and arrives at Bangkok Suvarnabhumi Airport at 13:45.
The flighttime is about 4h 45m. The distance travelled ("as the bird flies"): 3097 Km. So the average speed is roughly 652 Km.
There is an 1.5 hour time difference between Mumbai and Bangkok
