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

Return flights

16 Jan - 30 Jan	Air Canada
21 Jan - 28 Jan	Air Canada
15 Jan - 25 Jan	Air Canada
20 Jan - 30 Jan	Air Canada
28 Jan - 31 Jan	Air Canada
29 Jan - 31 Jan	Air Canada
27 Jan - 31 Jan	Air Canada
23 Jan - 27 Jan	Air Canada
16 Jan - 19 Jan	Air Canada
15 Jan - 18 Jan	Air Canada
31 Jan - 07 Feb	Air Canada
26 Jan - 02 Feb	Air Canada
25 Jan - 01 Feb	Air Canada
29 Jan - 08 Feb	Air Canada
27 Jan - 07 Feb	Air Canada
17 Jan - 15 Feb	Air Canada
30 Jan - 08 Feb	Air Canada
25 Jan - 02 Feb	Air Canada
19 Jan - 14 Feb	Air Canada
28 Jan - 01 Feb	Air Canada

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

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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Cheapest return flights from Seoul to San Francisco in January from 325€

Return flights