Do I need onward/return flight?

Thinking of heading to south korea for a while, but not sure where I%26#39;ll go afterwards, so would like to make arrangements once there. Does anyone know if I can do that? I%26#39;ve heard I may not be allowed in the country without a return or onward journey ticket.

Thanks!

Do I need onward/return flight?

I don%26#39;t know, but I think you%26#39;ll need an onward/return ticket.

You typically fill in a landing card before arrival, and state on that when you are leaving. If you don%26#39;t complete that, I guess you don%26#39;t get in.

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