Please be aware that Jakarta and Melbourne has multiple airports and that these results are for all airports serving the city.
The best month to fly between Jakarta and Melbourne is March and the most expensive month to fly is June. (Average prices, based on 1065 datapoints.)
The best day to arrive at Jakarta is Wednesday and it would be best to avoid Tuesday, as prices are on average 37.7% higher than on Wednesday. (Average prices, based on 1065 datapoints.)