Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:55 and arrives at Medan Kualanamu International Airport at 21:25.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 895 Km. So the average speed is roughly 358 Km.
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Friday, as prices are on average 4.68% higher than on Tuesday. (Average prices, based on 742705499 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 157 datapoints.)
We have a lot more statistics for flights GA 196 and between Jakarta and Medan.