Please be aware that Yogyakarta has multiple airports and that these results are for all airports serving the city.
The best month to fly between Yogyakarta and Palangkaraya is July and the most expensive month to fly is June. (Average prices, based on 667 datapoints.)
The best day to arrive at Yogyakarta is Saturday and it would be best to avoid Sunday, as prices are on average 12.13% higher than on Saturday. (Average prices, based on 667 datapoints.)