The best month to fly between Surabaya and Banjarmasin is August and the most expensive month to fly is May. (Average prices, based on 28041 datapoints.)
The best day to arrive at Surabaya is Thursday and it would be best to avoid Sunday, as prices are on average 49.48% higher than on Thursday. (Average prices, based on 61536149 datapoints.)
The best time to fly is at around 15. (Average prices, based on 48041 datapoints.)