Cheapest return ICN–SFO flights, September

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

Return flights

30 Sep - 14 Oct Air Premia direct
12 Sep - 19 Oct Air Premia direct
26 Sep - 10 Oct Air Premia direct
30 Sep - 10 Oct Air Premia direct
11 Sep - 15 Sep Air Canada
11 Sep - 17 Sep Air Canada
11 Sep - 18 Sep Air Canada
11 Sep - 19 Sep Air Canada
11 Sep - 20 Sep Air Canada
11 Sep - 22 Sep Air Canada
11 Sep - 24 Sep Air Canada
11 Sep - 25 Sep Air Canada
12 Sep - 15 Sep Air Canada
12 Sep - 22 Sep Air Canada
16 Sep - 01 Oct Air Canada
18 Sep - 01 Oct Air Canada
18 Sep - 02 Oct Air Canada
18 Sep - 03 Oct Air Canada
20 Sep - 01 Oct Air Canada
20 Sep - 02 Oct Air Canada

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

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