Flight Juanda International Airport departs from Surabaya Juanda International Airport at 07:40 and arrives at Jakarta Soekarno–Hatta International Airport at 09:05.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 682 Km. So the average speed is roughly 481 Km.
The best day to arrive at Surabaya is Sunday and it would be best to avoid Saturday, as prices are on average 19.25% higher than on Sunday. (Average prices, based on 548146986 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 138 datapoints.)
We have a lot more statistics for flights QG 9725 and between Surabaya and Jakarta.