Hello how may I help you? Moscow Nairobi Kenya and Hanoi Vietnam can you sort those from closest to farthest from Chicago Illinois Yes. Moscow is closest, then Nairobi, then Hanoi. Your good Thank you How far are the distances of each Moscow is 4,322 miles. Nairobi is 5,422 miles away. Hanoi is 6,145 miles. Ok thank s You're welcome! What else can I do for you? Nothing else Okay have a nice day!