Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 13:10 and arrives at Malang Abdul Rachman Saleh Airport at 14:50.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 677 Km. So the average speed is roughly 406 Km.
The best month to arrive at Jakarta is October and the most expensive month to fly is December. (Average prices, based on 6944 datapoints.)
We have a lot more statistics for flights SJ 248 and between Jakarta and Malang.