Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 09:00 and arrives at Singapore Changi Airport at 17:20.
The flighttime is about 5h 50m. The distance travelled ("as the bird flies"): 3418 Km. So the average speed is roughly 586 Km.
There is an 2.5 hour time difference between Mumbai and Singapore