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