The best month to fly with Flight GA138 is October and the most expensive month to fly is December. (Average prices, based on 2146 datapoints.)
The best day to arrive at Jakarta is Saturday and it would be best to avoid Sunday, as prices are on average 56.56% higher than on Saturday. (Average prices, based on 67463616 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 281 datapoints.)