Flight Dabolim International Airport departs from Goa Dabolim International Airport at 07:20 and arrives at Mumbai Chhatrapati Shivaji International Airport at 08:50.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 159 Km. So the average speed is roughly 106 Km.
The best month to arrive at Goa is September and the most expensive month to fly is March. (Average prices, based on 747 datapoints.)
We have a lot more statistics for flights I5 312 and between Goa and Mumbai.