Cheapest return flights from San Francisco to Seoul in December from $778

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

Return flights

08 Dec - 19 Dec Asiana Airlines direct
07 Dec - 14 Dec Air Premia direct
27 Dec - 30 Jan China Eastern
27 Dec - 14 Jan Air Premia direct
07 Dec - 10 Dec Air Premia direct
27 Dec - 18 Jan Air Premia direct
08 Dec - 14 Dec Air Premia direct
07 Dec - 12 Dec Air Premia direct
08 Dec - 17 Jan Air Premia direct
08 Dec - 15 Dec Air Premia direct
27 Dec - 30 Jan Air Premia direct
09 Dec - 14 Dec Flair Airlines
09 Dec - 17 Dec Flair Airlines
07 Dec - 22 Dec Flair Airlines
07 Dec - 21 Dec Zipair
27 Dec - 19 Jan China Eastern
26 Dec - 14 Jan Air Premia direct
26 Dec - 28 Jan Air Premia direct
26 Dec - 23 Jan Air Premia direct
26 Dec - 30 Jan Air Premia direct

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

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