Cheapest return flights from San Francisco to Seoul in January from $606

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

Return flights

15 Jan - 29 Jan China Southern
18 Jan - 30 Jan Air Premia direct
16 Jan - 25 Jan Air Premia direct
21 Jan - 18 Feb Air Premia direct
24 Jan - 27 Feb Air Premia direct
09 Jan - 18 Jan Alaska Airlines
23 Jan - 31 Jan Air Premia direct
17 Jan - 24 Jan Air Premia direct
25 Jan - 01 Feb Air Premia direct
24 Jan - 06 Feb Air Premia direct
30 Jan - 06 Feb Air Premia direct
06 Jan - 27 Jan United direct
15 Jan - 25 Jan United direct
29 Jan - 05 Feb United direct
05 Jan - 19 Jan United direct
18 Jan - 26 Jan United direct
06 Jan - 25 Feb United direct
30 Jan - 11 Feb Asiana Airlines direct

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

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