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 Saturday and it would be best to avoid Thursday, as prices are on average 33.26% higher than on Saturday. (Average prices, based on 65344342 datapoints.)
The best time to fly is at around 16. (Average prices, based on 21462 datapoints.)