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