Cheapest return flights from Seoul to San Francisco in September from 376€

AirHint found the following cheapest return flights from Seoul (ICN) to San Francisco (SFO) in September 2025 (see full year).

Return flights

10 Sep - 28 Sep Air Canada
16 Sep - 21 Sep Air Canada
18 Sep - 25 Sep Air Canada
16 Sep - 23 Sep Air Canada
12 Sep - 22 Sep Air Canada
19 Sep - 24 Sep Air Canada
22 Sep - 29 Sep Air Canada
24 Sep - 29 Sep Air Canada
25 Sep - 28 Sep Air Canada
25 Sep - 29 Sep Air Canada
24 Sep - 05 Oct Air Canada
25 Sep - 05 Oct Air Canada
26 Sep - 05 Oct Air Canada
25 Sep - 26 Oct Air Canada
29 Sep - 05 Oct Air Canada
26 Sep - 25 Oct Air Canada
24 Sep - 25 Oct Air Canada
28 Sep - 05 Oct Air Canada
27 Sep - 05 Oct Air Canada
19 Sep - 04 Oct Air Canada

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

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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