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 Pekanbaru is August and the most expensive month to fly is December. (Average prices, based on 3298 datapoints.)
The best day to arrive at Yogyakarta is Wednesday and it would be best to avoid Saturday, as prices are on average 6.19% higher than on Wednesday. (Average prices, based on 3295 datapoints.)