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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
17 Sep Cathay Pacific
03 Sep Cathay Pacific
15 Sep Frontier Airlines
22 Sep Cathay Pacific
07 Sep Cathay Pacific
01 Sep Frontier Airlines
05 Sep Alaska Airlines
27 Sep Frontier Airlines
20 Sep Frontier Airlines
29 Sep Cathay Pacific
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deals for return flights from Seattle to Seoul in September.

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Updated Jul 17, 2026.

About these fares

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