The best month to fly between Surabaya and Banjarmasin is September and the most expensive month to fly is July. (Average prices, based on 92570 datapoints.)
The best day to arrive at Surabaya is Thursday and it would be best to avoid Sunday, as prices are on average 8.37% higher than on Thursday. (Average prices, based on 60094787 datapoints.)
The best time to fly is at around 12. (Average prices, based on 112569 datapoints.)