For all cities with a population greater than one hundred thousand, Tallinn is closest to Helsinki and farthest from Dunedin. The closest foreign city is Helsinki and the farthest domestic city is Tartu. 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.