Flight Binaka Airport departs from Gunung Sitoli Binaka Airport at 10:10 and arrives at Medan Kualanamu International Airport at 11:15.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 157 Km. So the average speed is roughly 145 Km.
The best month to arrive at Gunung Sitoli is March and the most expensive month to fly is July. (Average prices, based on 849 datapoints.)
We have a lot more statistics for flights IW 249 and between Gunung Sitoli and Medan.