Cheapest return flights from Seattle to Seoul in August from $744

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in August 2026 (see full year).

Return flights

29 Aug - 13 Sep Cathay Pacific
22 Aug - 20 Sep Cathay Pacific
28 Aug - 22 Sep Asiana Airlines
29 Aug - 19 Sep Cathay Pacific
13 Aug - 24 Aug Cathay Pacific
29 Aug - 13 Sep Asiana Airlines direct
28 Aug - 22 Sep Asiana Airlines direct
22 Aug - 20 Sep Asiana Airlines direct
30 Aug - 11 Sep Air Canada
24 Aug - 29 Aug Cathay Pacific
24 Aug - 30 Aug Cathay Pacific
09 Aug - 22 Aug Air Canada
09 Aug - 22 Aug Alaska Airlines direct
24 Aug - 30 Aug Asiana Airlines direct
13 Aug - 24 Aug Delta direct
29 Aug - 19 Sep Korean Air direct
24 Aug - 29 Aug Delta direct
30 Aug - 11 Sep Korean Air direct

Also check the deals for one-way flights from Seattle to Seoul in August.

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