The best month to fly between Surabaya and Banjarmasin is March and the most expensive month to fly is July. (Average prices, based on 1288 datapoints.)
The best day to arrive at Surabaya is Monday and it would be best to avoid Sunday, as prices are on average 11.61% higher than on Monday. (Average prices, based on 60769950 datapoints.)
The best time to fly is at around 15. (Average prices, based on 21283 datapoints.)