Cheapest return flights from Seoul to Seattle in September from 487€

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

Return flights

10 Sep - 16 Sep United
07 Sep - 14 Sep United
03 Sep - 09 Sep United
04 Sep - 10 Sep United
04 Sep - 11 Sep Philippine Airlines
22 Sep - 26 Sep EVA Air
01 Sep - 27 Sep EVA Air
09 Sep - 24 Sep Air Canada
21 Sep - 08 Oct Air Canada
09 Sep - 24 Sep Delta direct
10 Sep - 16 Sep Asiana Airlines direct
21 Sep - 08 Oct Delta direct
24 Sep - 10 Oct Delta
05 Sep - 05 Oct EVA Air
24 Sep - 10 Oct Asiana Airlines direct
18 Sep - 03 Oct EVA Air
18 Sep - 03 Oct Asiana Airlines direct
05 Sep - 05 Oct Delta direct
19 Sep - 08 Oct Delta
19 Sep - 09 Oct Delta

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

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