The best month to arrive at Luwuk is August and the most expensive month to fly is January. (Average prices, based on 1300 datapoints.)
The best day to arrive at Luwuk is Wednesday and it would be best to avoid Tuesday, as prices are on average 11.19% higher than on Wednesday. (Average prices, based on 1296 datapoints.)
From Luwuk it is on average the cheapest to fly to Palu and to Makassar. (Average prices, based on 1287 datapoints.)