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 October and the most expensive month to fly is March. (Average prices, based on 23148 datapoints.)
The best day to arrive at Jakarta is Monday and it would be best to avoid Thursday, as prices are on average 14.36% higher than on Monday. (Average prices, based on 19947 datapoints.)
The cheapest airline flying from Jakarta to Solo is Citilink. They are 40% cheaper than Garuda Indonesia. (Average prices, based on 23157 datapoints.)
The best time to fly is at around 8. (Average prices, based on 40115 datapoints.)