The best month to fly with Flight IU540 is June and the most expensive month to fly is March. (Average prices, based on 977 datapoints.)
The best day to arrive at Surabaya is Sunday and it would be best to avoid Wednesday, as prices are on average 6.92% higher than on Sunday. (Average prices, based on 2034603 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 106 datapoints.)