The best month to fly with Flight IW1921 is February and the most expensive month to fly is July. (Average prices, based on 757 datapoints.)
The best day to arrive at Kupang is Tuesday and it would be best to avoid Thursday, as prices are on average 28.05% higher than on Tuesday. (Average prices, based on 1580809 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 665 datapoints.)