Cheapest return flights from Seattle (SEA) to Seoul (ICN), May

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
27 May 01 Jun WestJet
30 May 15 Jun Alaska Airlines
28 May 31 May Alaska Airlines
29 May 17 Jun Alaska Airlines
23 May 06 Jun Harbour Air
25 May 15 Jun Hahn Air Technologies
25 May 05 Jun Turkish Airlines
25 May 02 Jun Cathay Pacific
22 May 30 May Asiana Airlines
Direct Flight
25 May 08 Jun Turkish Airlines
30 May 06 Jun Turkish Airlines
22 May 25 May Alaska Airlines
25 May 01 Jun Asiana Airlines
Direct Flight
22 May 25 May Asiana Airlines
Direct Flight
23 May 31 May Delta
23 May 31 May Delta
Direct Flight
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deals for one-way flights from Seattle to Seoul in May.

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Updated May 21, 2026.

About these fares

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