For all cities with a population greater than one hundred thousand, Port Moresby is closest to Cairns and farthest from Praia. The closest foreign city is Cairns. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Port Moresby is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.