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