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

Return flights

06 Mar - 15 Mar	Air Canada
03 Mar - 10 Mar	Air Canada
09 Mar - 16 Mar	Air Canada
02 Mar - 09 Mar	Air Canada
02 Mar - 07 Mar	Air Canada
02 Mar - 16 Mar	Air Canada
13 Mar - 22 Mar	Air Canada
18 Mar - 25 Mar	Air Canada
02 Mar - 20 Mar	Air Canada
01 Mar - 06 Mar	United	direct
11 Mar - 08 Apr	United	direct
25 Mar - 01 Apr	United	direct
29 Mar - 05 Apr	Air Premia	direct
10 Mar - 15 Apr	Air Canada
10 Mar - 15 Apr	Asiana Airlines	direct

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 316€

Return flights