Flight Juanda International Airport departs from Surabaya Juanda International Airport at 16:30 and arrives at Jakarta Soekarno–Hatta International Airport at 18:10.
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 Surabaya is Friday and it would be best to avoid Monday, as prices are on average 5.43% higher than on Friday. (Average prices, based on 704660000 datapoints.)
We have a lot more statistics for flights MH 4039 and between Surabaya and Jakarta.
