The best month to fly with Flight IW1821 is February and the most expensive month to fly is July. (Average prices, based on 3050 datapoints.)
The best day to arrive at Kupang is Thursday and it would be best to avoid Monday, as prices are on average 17.66% higher than on Thursday. (Average prices, based on 3256795 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 473 datapoints.)