The best month to fly with Flight JT139 is March and the most expensive month to fly is June. (Average prices, based on 4391 datapoints.)
The best day to arrive at Penang is Tuesday and it would be best to avoid Saturday, as prices are on average 30.6% higher than on Tuesday. (Average prices, based on 13509469 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 156 datapoints.)