Please be aware that Jakarta has multiple airports and that these results are for all airports serving the city.
The best month to fly between Jakarta and Solo is March and the most expensive month to fly is June. (Average prices, based on 37489 datapoints.)
The best day to arrive at Jakarta is Saturday and it would be best to avoid Sunday, as prices are on average 4.64% higher than on Saturday. (Average prices, based on 62206 datapoints.)
The cheapest airline flying from Jakarta to Solo is Batik Air. They are 45% cheaper than Garuda Indonesia. (Average prices, based on 37500 datapoints.)
The best time to fly is at around 7. (Average prices, based on 57494 datapoints.)