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How long does a letter take?

Every PreviewPal letter flies the real great-circle distance between you and your penpal at 500 mph. They can peek at it the moment it's sent, and reply when it lands. Here's how long the journey takes on some of the routes people write across most.

• Toronto → Kyoto: 13h 08m
• Bismarck → Lagos: 13h 05m
• Bismarck → Nairobi: 16h 47m
• Bismarck → London: 8h 21m
• Bismarck → Manila: 14h 56m
• Bismarck → Kinshasa: 15h 19m
• New York → London: 6h 55m
• New York → Paris: 7h 15m
• London → Sydney: 21h 07m
• Los Angeles → Manila: 14h 35m
• Los Angeles → Seoul: 11h 54m
• Los Angeles → Tokyo: 10h 57m
• San Francisco → Singapore: 16h 52m
• Houston → Lagos: 13h 01m
• London → Lagos: 6h 13m
• London → Nairobi: 8h 28m
• London → Mumbai: 8h 56m
• Toronto → Delhi: 14h 27m
• Toronto → Manila: 16h 25m
• Chicago → Warsaw: 9h 20m
• Chicago → Dublin: 7h 19m
• Boston → Dublin: 5h 58m
• New York → Rome: 8h 33m
• Miami → Bogotá: 3h 01m
• Miami → Buenos Aires: 8h 49m
• Dallas → Mexico City: 1h 51m
• Los Angeles → Guadalajara: 2h 35m
• Seattle → Tokyo: 9h 34m
• Vancouver → Hong Kong: 12h 44m
• Sydney → Auckland: 2h 40m
• Melbourne → Athens: 18h 34m
• Berlin → Istanbul: 2h 09m
• Paris → Dakar: 5h 13m
• Paris → Montreal: 6h 50m
• Madrid → Buenos Aires: 12h 29m
• Lisbon → São Paulo: 9h 52m
• Dubai → Manila: 8h 35m
• Dubai → Mumbai: 2h 24m
• Singapore → London: 13h 28m
• Tokyo → Paris: 12h 04m
• Seoul → New York: 13h 44m
• Nairobi → Johannesburg: 3h 38m
• Accra → New York: 10h 14m
• Cairo → London: 4h 21m
• Honolulu → Tokyo: 7h 43m
• Washington, D.C. → Frankfurt: 8h 06m
• Atlanta → Seoul: 14h 13m
• Minneapolis → Nairobi: 16h 19m
• New York → Mumbai: 15h 34m
• Vancouver → Manila: 13h 06m