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 25260 datapoints.)
The best day to arrive at Jakarta is Monday and it would be best to avoid Friday, as prices are on average 4.79% higher than on Monday. (Average prices, based on 63460 datapoints.)
The cheapest airline flying from Jakarta to Solo is Citilink. They are 26% cheaper than Garuda Indonesia. (Average prices, based on 25265 datapoints.)
The best time to fly is at around 7. (Average prices, based on 45262 datapoints.)