The best month to fly between Surabaya and Banjarmasin is March and the most expensive month to fly is April. (Average prices, based on 765 datapoints.)
The best day to arrive at Surabaya is Monday and it would be best to avoid Saturday, as prices are on average 15.79% higher than on Monday. (Average prices, based on 62184892 datapoints.)
The best time to fly is at around 15. (Average prices, based on 20765 datapoints.)