The best month to fly between Surabaya and Banjarmasin is March and the most expensive month to fly is May. (Average prices, based on 3847 datapoints.)
The best day to arrive at Surabaya is Wednesday and it would be best to avoid Sunday, as prices are on average 16.25% higher than on Wednesday. (Average prices, based on 125614340 datapoints.)
The best time to fly is at around 14. (Average prices, based on 23848 datapoints.)