Please be aware that Yogyakarta and Kuala Lumpur has multiple airports and that these results are for all airports serving the city.
The best month to fly between Yogyakarta and Kuala Lumpur is March and the most expensive month to fly is December. (Average prices, based on 1503 datapoints.)
The best day to arrive at Yogyakarta is Tuesday and it would be best to avoid Sunday, as prices are on average 40.48% higher than on Tuesday. (Average prices, based on 1484 datapoints.)