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