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I want to know if I travel to the Philippines and I have a layover in Seoul Korea, do I need a visa to transit through to my next flight to philippines?

marked as duplicate by user 56513, choster, brhans, Michael Seifert, Michael Hampton Dec 20 '18 at 18:41

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    Welcome to TSE. Note that your citizenship or how you obtained it is a separate matter from how you demonstrate your nationality to officials when traveling, ordinarily done with a passport. You may be a U.S. citizen, but will only be treated as such if you present a U.S. passport or equivalent for identification. – choster Dec 20 '18 at 16:21

With a US passport, you don't need a visa to visit the Philippines for up to 30 days.

As you'll only be in transit in South Korea, their requirements aren't relevant (though you would be able to enter for up to 90 days)

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