Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 16:10 and arrives at Medan Kualanamu International Airport at 18:40.
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 Saturday, as prices are on average 8.97% higher than on Tuesday. (Average prices, based on 752994215 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 111 datapoints.)
We have a lot more statistics for flights GA 1904 and between Jakarta and Medan.