Flight Kualanamu International Airport departs from Medan Kualanamu International Airport at 10:00 and arrives at Sibolga Ferdinand Lumban Tobing Airport at 10:50.
The flighttime is about 0h 50m. The distance travelled ("as the bird flies"): 72 Km. So the average speed is roughly 86 Km.
The best day to arrive at Medan is Tuesday and it would be best to avoid Sunday, as prices are on average 144.78% higher than on Tuesday. (Average prices, based on 153603 datapoints.)
We have a lot more statistics for flights IW 1256 and between Medan and Sibolga.