Flight Kualanamu International Airport departs from Medan Kualanamu International Airport at 13:30 and arrives at Jakarta Soekarno–Hatta International Airport at 15:55.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 895 Km. So the average speed is roughly 370 Km.
The best month to arrive at Medan is September and the most expensive month to fly is March. (Average prices, based on 346 datapoints.)
We have a lot more statistics for flights IW 397 and between Medan and Jakarta.
IDR