Cheapest return flights from Seattle to Seoul in August from $885

Best time to book flights for Seattle (SEA) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in August 2025 (see full year).

Return flights

29 Aug - 13 Sep China Airlines
29 Aug - 06 Sep China Airlines
08 Aug - 24 Aug Alaska Airlines
30 Aug - 13 Sep WestJet
10 Aug - 20 Sep China Airlines
28 Aug - 16 Sep WestJet
05 Aug - 02 Sep Turkish Airlines
06 Aug - 13 Aug Turkish Airlines
03 Aug - 16 Aug China Airlines
07 Aug - 26 Aug Turkish Airlines
03 Aug - 02 Sep Turkish Airlines
25 Aug - 09 Sep Air Canada
29 Aug - 06 Sep Asiana Airlines direct
29 Aug - 13 Sep Asiana Airlines direct
07 Aug - 26 Aug Asiana Airlines direct
06 Aug - 13 Aug Asiana Airlines direct
08 Aug - 24 Aug Asiana Airlines direct
03 Aug - 16 Aug Asiana Airlines direct

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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