The best month to fly between Banjarmasin and Surabaya is August and the most expensive month to fly is May. (Average prices, based on 39657 datapoints.)
The best day to arrive at Banjarmasin is Tuesday and it would be best to avoid Monday, as prices are on average 4.34% higher than on Tuesday. (Average prices, based on 67555370 datapoints.)
The best time to fly is at around 16. (Average prices, based on 59663 datapoints.)