The best month to fly between Banjarmasin and Surabaya is March and the most expensive month to fly is June. (Average prices, based on 2264 datapoints.)
The best day to arrive at Banjarmasin is Monday and it would be best to avoid Thursday, as prices are on average 9.34% higher than on Monday. (Average prices, based on 68327974 datapoints.)
The best time to fly is at around 16. (Average prices, based on 22271 datapoints.)