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 Ho Chi Minh City is February and the most expensive month to fly is December. (Average prices, based on 2534 datapoints.)
The best day to arrive at Jakarta is Monday and it would be best to avoid Saturday, as prices are on average 16.12% higher than on Monday. (Average prices, based on 2542 datapoints.)