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