Cheapest return flights from Seattle to Seoul in August from $790

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

26 Aug - 24 Sep Air Canada
23 Aug - 06 Sep Air Canada
15 Aug - 24 Aug Hawaiian Airlines
05 Aug - 17 Aug STARLUX Airlines
10 Aug - 29 Aug Air Canada
10 Aug - 28 Aug Turkish Airlines
04 Aug - 16 Aug STARLUX Airlines
14 Aug - 27 Aug Turkish Airlines
14 Aug - 23 Aug Turkish Airlines
05 Aug - 01 Sep EVA Air
16 Aug - 23 Aug Turkish Airlines
23 Aug - 30 Aug EVA Air
02 Aug - 17 Aug Alaska Airlines
26 Aug - 24 Sep Asiana Airlines direct
23 Aug - 06 Sep Asiana Airlines direct
07 Aug - 02 Sep Delta direct
05 Aug - 02 Sep Delta direct
05 Aug - 01 Sep Korean Air 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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