Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 09:30 and arrives at Medan Kualanamu International Airport at 11:45.
The flighttime is about 2h 15m. The distance travelled ("as the bird flies"): 895 Km. So the average speed is roughly 398 Km.
The best month to arrive at Jakarta is October and the most expensive month to fly is December. (Average prices, based on 12835 datapoints.)
The best day to arrive at Jakarta is Sunday and it would be best to avoid Friday, as prices are on average 58.37% higher than on Sunday. (Average prices, based on 791274070 datapoints.)
We have a lot more statistics for flights OD 306 and between Jakarta and Medan.