Flight Juanda International Airport departs from Surabaya Juanda International Airport at 05:55 and arrives at Jakarta Soekarno–Hatta International Airport at 07:30.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 682 Km. So the average speed is roughly 431 Km.
The best day to arrive at Surabaya is Tuesday and it would be best to avoid Sunday, as prices are on average 101.98% higher than on Tuesday. (Average prices, based on 542810748 datapoints.)
We have a lot more statistics for flights QG 5603 and between Surabaya and Jakarta.