Cheapest return flights from Seattle to Seoul in August from $849

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

Return flights

05 Aug - 19 Aug Asiana Airlines direct
01 Aug - 16 Aug Korean Air direct
11 Aug - 18 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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