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