The best month to fly between Surabaya and Banjarmasin is March and the most expensive month to fly is July. (Average prices, based on 1288 datapoints.)
The best day to arrive at Surabaya is Sunday and it would be best to avoid Friday, as prices are on average 15.45% higher than on Sunday. (Average prices, based on 60732232 datapoints.)
The best time to fly is at around 15. (Average prices, based on 21283 datapoints.)