The best month to fly with Flight JT6398 is September and the most expensive month to fly is May. (Average prices, based on 3925 datapoints.)
The best day to arrive at Surabaya is Tuesday and it would be best to avoid Wednesday, as prices are on average 27.69% higher than on Tuesday. (Average prices, based on 17506456 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 150 datapoints.)