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

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Dates, airline, and price
Dates	Airline	Price
28 May	Alaska Airlines
31 May	ANA
23 May	Harbour Air
26 May	Harbour Air
30 May	Icelandair
29 May	Icelandair
24 May	WestJet
25 May	Harbour Air
22 May	Asiana Airlines Direct Flight
25 May	Asiana Airlines Direct Flight

deals for return flights from Seattle to Seoul in May.

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Updated May 21, 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), May

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