Cheapest return ICN–SFO flights, December

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

Return flights

17 Dec - 27 Dec Air Canada
19 Dec - 28 Dec Air Canada
21 Dec - 27 Dec Air Canada
24 Dec - 31 Dec Air Canada
20 Dec - 29 Dec Air Canada
22 Dec - 31 Dec Air Canada
02 Dec - 13 Dec Air Canada
27 Dec - 31 Dec Air Canada
01 Dec - 31 Dec Air Canada
12 Dec - 15 Dec Air Canada
24 Dec - 01 Jan Air Canada
19 Dec - 22 Jan Air Canada
26 Dec - 03 Jan Air Canada
21 Dec - 27 Jan Air Canada
27 Dec - 01 Jan Air Canada
24 Dec - 08 Jan Air Canada
19 Dec - 22 Jan Air Premia direct
27 Dec - 01 Jan Air Premia direct
21 Dec - 27 Jan Asiana Airlines direct
26 Dec - 03 Jan Air Premia direct

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

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