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 Thursday and it would be best to avoid Wednesday, as prices are on average 27.98% higher than on Thursday. (Average prices, based on 60261906 datapoints.)
The best time to fly is at around 15. (Average prices, based on 19394 datapoints.)