Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 20:00 and arrives at Batam Hang Nadim Airport at 21:35.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 354 Km. So the average speed is roughly 224 Km.
The best day to arrive at Jakarta is Wednesday and it would be best to avoid Tuesday, as prices are on average 12.99% higher than on Wednesday. (Average prices, based on 154684124 datapoints.)
We have a lot more statistics for flights QG 9944 and between Jakarta and Batam.