Cheapest return flights from Seattle to Seoul in August from 740€

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

Return flights

25 Aug - 19 Sep Air Canada
24 Aug - 13 Sep Air Canada
22 Aug - 23 Sep Air Canada
14 Aug - 13 Sep WestJet
13 Aug - 24 Aug Hawaiian Airlines
20 Aug - 24 Aug Hawaiian Airlines
23 Aug - 01 Sep WestJet
20 Aug - 27 Aug WestJet
05 Aug - 07 Sep WestJet
18 Aug - 25 Aug WestJet
22 Aug - 31 Aug WestJet
17 Aug - 24 Aug Hawaiian Airlines
18 Aug - 01 Sep WestJet
09 Aug - 20 Aug WestJet
16 Aug - 23 Aug WestJet
10 Aug - 19 Aug China Airlines
21 Aug - 19 Sep WestJet
20 Aug - 23 Aug Philippine Airlines
25 Aug - 19 Sep Asiana Airlines direct
24 Aug - 13 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.