Flight Haneda Airport departs from Tokyo Haneda Airport at 10:15 and arrives at Jakarta Soekarno–Hatta International Airport at 16:15.
The flighttime is about 8h 00m. The distance travelled ("as the bird flies"): 4285 Km. So the average speed is roughly 536 Km.
There is an 2 hour time difference between Tokyo and Jakarta
The best month to arrive at Tokyo is September and the most expensive month to fly is April. (Average prices, based on 367 datapoints.)
The best day to arrive at Tokyo is Thursday and it would be best to avoid Monday, as prices are on average 114.55% higher than on Thursday. (Average prices, based on 7131400 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 314 datapoints.)
We have a lot more statistics for flights NH 855 and between Tokyo and Jakarta.