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Cheapest one-way flights from Seattle (SEA) to Seoul (ICN), October

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
05 Oct	Alaska Airlines
22 Oct	WestJet
14 Oct	WestJet
12 Oct	China Airlines
05 Oct	Korean Air Direct Flight
14 Oct	Asiana Airlines Direct Flight
22 Oct	Delta Direct Flight
12 Oct	Delta Direct Flight

deals for return flights from Seattle to Seoul in October.

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Updated Jul 18, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Seattle (SEA) to Seoul (ICN), October

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