Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 17:20 and arrives at Surabaya Juanda International Airport at 19:00.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 682 Km. So the average speed is roughly 409 Km.
The best day to arrive at Jakarta is Sunday and it would be best to avoid Monday, as prices are on average 197.73% higher than on Sunday. (Average prices, based on 1280958083 datapoints.)
We have a lot more statistics for flights VN 3902 and between Jakarta and Surabaya.
