Cheapest return flights from Seattle to Seoul in August from $1017

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

25 Aug - 20 Sep China Airlines
29 Aug - 07 Sep China Airlines
17 Aug - 01 Sep China Airlines
04 Aug - 20 Aug EVA Air
04 Aug - 23 Aug China Airlines
01 Aug - 08 Aug Air Canada
25 Aug - 20 Sep Asiana Airlines direct
04 Aug - 23 Aug Asiana Airlines direct
01 Aug - 08 Aug Asiana Airlines direct
04 Aug - 20 Aug Asiana Airlines direct
17 Aug - 01 Sep Korean Air direct
29 Aug - 07 Sep Asiana Airlines direct

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

Skyscanner

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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