Flight Juanda International Airport departs from Surabaya Juanda International Airport at 05:00 and arrives at Jakarta Halim Perdanakusuma International Airport at 06:20.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 656 Km. So the average speed is roughly 492 Km.
The best month to arrive at Surabaya is November and the most expensive month to fly is April. (Average prices, based on 3508 datapoints.)
We have a lot more statistics for flights IU 7508 and between Surabaya and Jakarta.