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

Return flights

03 Mar - 23 Mar	Air Canada
10 Mar - 24 Mar	Air Canada
11 Mar - 25 Mar	Air Canada
04 Mar - 23 Mar	Air Canada
11 Mar - 23 Mar	Air Canada
03 Mar - 25 Mar	Air Canada
06 Mar - 21 Mar	Air Canada
07 Mar - 21 Mar	Air Canada
07 Mar - 22 Mar	Air Canada
09 Mar - 22 Mar	Air Canada
09 Mar - 27 Apr	Air Canada
07 Mar - 10 Apr	Air Canada
27 Mar - 06 Apr	United	direct
04 Mar - 20 Apr	United	direct
27 Mar - 08 Apr	United	direct
09 Mar - 27 Apr	United	direct
25 Mar - 06 Apr	United	direct
25 Mar - 08 Apr	United	direct
18 Mar - 17 Apr	Air Premia	direct
04 Mar - 01 Apr	Air Canada

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

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 March from 314€

Return flights