The best month to arrive at Merauke is March and the most expensive month to fly is August. (Average prices, based on 242 datapoints.)
The best day to arrive at Merauke is Wednesday and it would be best to avoid Monday, as prices are on average 15.44% higher than on Wednesday. (Average prices, based on 246 datapoints.)
From Merauke it is on average the cheapest to fly to Jayapura and to Makassar. (Average prices, based on 236 datapoints.)