The best month to fly with Flight IW1816 is January and the most expensive month to fly is July. (Average prices, based on 479 datapoints.)
The best day to arrive at Surabaya is Monday and it would be best to avoid Saturday, as prices are on average 17.37% higher than on Monday. (Average prices, based on 11473631 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 426 datapoints.)