Cheapest one-way flights from St. Louis to Seoul in April from 358€

AirHint found the following cheapest one-way flights from St. Louis (STL) to Seoul (ICN) in April 2026 (see full year).

One-Way flights

16 Apr Alaska Airlines
22 Apr United

Also check the deals for return flights from St. Louis to Seoul in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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