Cheapest return flights from Seoul to San Francisco in December 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 December 2025 (see full year).

Return flights

15 Dec - 28 Dec Air Premia direct
22 Dec - 05 Jan Air Premia direct
22 Dec - 28 Dec Air Premia direct
21 Dec - 28 Dec United direct
15 Dec - 29 Dec United direct
22 Dec - 31 Dec United direct
19 Dec - 27 Dec United direct
20 Dec - 27 Dec United direct
24 Dec - 31 Dec United direct
19 Dec - 28 Dec United direct
26 Dec - 28 Dec United direct
24 Dec - 05 Jan United direct
26 Dec - 04 Jan United direct
26 Dec - 05 Jan United direct
19 Dec - 04 Jan United direct
29 Dec - 05 Jan United direct
17 Dec - 03 Jan United direct
26 Dec - 03 Jan United direct
24 Dec - 03 Jan United direct
25 Dec - 05 Jan United direct

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

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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