Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 09:20 and arrives at Batam Hang Nadim Airport at 11:00.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 354 Km. So the average speed is roughly 212 Km.
The best day to arrive at Jakarta is Thursday and it would be best to avoid Saturday, as prices are on average 4.77% higher than on Thursday. (Average prices, based on 238989243 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 154 datapoints.)
We have a lot more statistics for flights SL 850 and between Jakarta and Batam.