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 Labuanbajo is January and the most expensive month to fly is June. (Average prices, based on 4010 datapoints.)
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Thursday, as prices are on average 13.9% higher than on Tuesday. (Average prices, based on 3971 datapoints.)
The best time to fly is at around 12. (Average prices, based on 7640 datapoints.)