Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 20:25 and arrives at Surabaya Juanda International Airport at 21:55.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 682 Km. So the average speed is roughly 455 Km.
The best month to arrive at Jakarta is September and the most expensive month to fly is June. (Average prices, based on 15345 datapoints.)
We have a lot more statistics for flights AK 690 and between Jakarta and Surabaya.