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