Cheapest return flights from Seoul to San Francisco in October from $492

Best time to book flights for Seoul (ICN) to San Francisco (SFO) flights at AirHint

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

Return flights

29 Oct - 05 Nov Air Premia direct
18 Oct - 25 Oct United direct
15 Oct - 27 Oct United direct
20 Oct - 26 Oct United direct
17 Oct - 31 Oct United direct
10 Oct - 20 Oct United direct
17 Oct - 27 Oct United direct
17 Oct - 25 Oct United direct
24 Oct - 29 Oct United direct
18 Oct - 27 Oct United direct
17 Oct - 22 Oct United direct
31 Oct - 08 Nov United direct
29 Oct - 03 Nov United direct
24 Oct - 02 Nov Air Premia direct
26 Oct - 01 Nov United direct
21 Oct - 19 Nov United direct
22 Oct - 04 Nov United direct
25 Oct - 26 Nov United direct
25 Oct - 01 Nov United direct

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

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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