The best month to fly between Hong Kong and Jakarta is May and the most expensive month to fly is June. (Average prices, based on 10217 datapoints.)
The best day to arrive at Hong Kong is Thursday and it would be best to avoid Wednesday, as prices are on average 15.34% higher than on Thursday. (Average prices, based on 10128 datapoints.)
The best time to fly is at around 16. (Average prices, based on 19446 datapoints.)