The best month to fly between Banjarmasin and Surabaya is January and the most expensive month to fly is November. (Average prices, based on 1461 datapoints.)
The best day to arrive at Banjarmasin is Friday and it would be best to avoid Tuesday, as prices are on average 47.76% higher than on Friday. (Average prices, based on 65198147 datapoints.)
The best time to fly is at around 16. (Average prices, based on 21462 datapoints.)