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

Return flights

01 Mar - 08 Mar	Air Premia	direct
01 Mar - 05 Apr	Air Premia	direct
20 Mar - 27 Mar	Air Canada
20 Mar - 27 Mar	Air Premia	direct
27 Mar - 11 Apr	Air Canada
20 Mar - 29 Mar	Air Premia	direct
14 Mar - 05 Apr	Vietnam Airlines
28 Mar - 03 Apr	Vietnam Airlines
06 Mar - 28 Mar	Air Canada
21 Mar - 29 Mar	Vietnam Airlines
26 Mar - 04 Apr	Air Canada
14 Mar - 05 Apr	United	direct
06 Mar - 28 Mar	United	direct
21 Mar - 29 Mar	United	direct
26 Mar - 04 Apr	United	direct
28 Mar - 03 Apr	United	direct
27 Mar - 11 Apr	United	direct

Also check the deals for one-way flights from San Francisco to Seoul 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 San Francisco to Seoul in March from 560€

Return flights