2

This question already has an answer here:

I am travelling to Japan from Uzbekistan through Incheon airport.

Do I need a Korean transit visa, if I only make transfer at Incheon and do not go outside of the airport?

marked as duplicate by blackbird, JS Lavertu, Giorgio, Willeke, Revetahw Sep 28 '16 at 18:42

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.