The best month to fly between Banjarmasin and Surabaya is September and the most expensive month to fly is June. (Average prices, based on 108569 datapoints.)
The best day to arrive at Banjarmasin is Tuesday and it would be best to avoid Thursday, as prices are on average 7.98% higher than on Tuesday. (Average prices, based on 64166619 datapoints.)
The best time to fly is at around 17. (Average prices, based on 126269 datapoints.)