For all cities with a population greater than five hundred thousand, Constantine is closest to Algiers and farthest from Auckland. The closest foreign city is Tunis and the farthest domestic city is Oran. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Constantine is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.