Cheapest return flights from Seattle to Seoul in August from 697€

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

Return flights

30 Aug - 01 Sep WestJet
10 Aug - 12 Aug Korean Air direct
10 Aug - 17 Aug Korean Air direct
13 Aug - 20 Aug Korean Air
22 Aug - 19 Sep Air Canada
22 Aug - 20 Sep Air Canada
29 Aug - 14 Sep Air Canada
29 Aug - 01 Sep WestJet
14 Aug - 02 Sep Delta direct
21 Aug - 19 Sep Delta direct
06 Aug - 29 Aug Asiana Airlines direct
19 Aug - 26 Aug Delta direct
09 Aug - 17 Aug Delta direct
29 Aug - 14 Sep Delta direct
22 Aug - 30 Aug Delta
13 Aug - 20 Aug Korean Air direct
08 Aug - 22 Aug Korean Air
22 Aug - 30 Aug Asiana Airlines direct
29 Aug - 01 Sep Delta direct
30 Aug - 01 Sep Delta 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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