Cheapest return flights from Seattle to Seoul in September from 729€

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

Return flights

11 Sep - 18 Sep Asiana Airlines direct
14 Sep - 21 Sep Asiana Airlines direct
08 Sep - 15 Sep Asiana Airlines direct
02 Sep - 22 Sep Asiana Airlines direct
21 Sep - 06 Oct Asiana Airlines direct
10 Sep - 17 Sep Hainan Airlines
16 Sep - 23 Sep EVA Air
29 Sep - 27 Oct Asiana Airlines direct
13 Sep - 20 Sep China Airlines
15 Sep - 30 Sep Air Canada
03 Sep - 22 Sep Air Canada
22 Sep - 10 Oct Air Canada
25 Sep - 05 Oct Air Canada
13 Sep - 27 Sep Air Canada
22 Sep - 10 Oct Delta direct
25 Sep - 05 Oct Delta direct

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

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