Cheapest return flights from San Francisco to Seoul in October from $629

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

Return flights

28 Oct - 05 Nov Philippine Airlines
27 Oct - 05 Nov Philippine Airlines
01 Oct - 31 Oct Air Premia direct
01 Oct - 12 Oct Air Premia direct
01 Oct - 15 Oct Air Premia direct
19 Oct - 31 Oct Air Premia direct
20 Oct - 31 Oct Air Premia direct
20 Oct - 03 Nov Air Premia direct
29 Oct - 12 Nov Air Premia direct
22 Oct - 05 Nov Air Premia direct
26 Oct - 16 Nov Air Premia direct
29 Oct - 05 Nov Air Premia direct
29 Oct - 03 Nov Air Premia direct
26 Oct - 03 Nov Air Premia direct
22 Oct - 27 Oct Air Premia direct
06 Oct - 22 Oct Air Premia direct
01 Oct - 06 Oct Hawaiian Airlines
02 Oct - 18 Oct Alaska Airlines
18 Oct - 25 Oct Alaska Airlines
25 Oct - 02 Nov China Eastern

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