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

Return flights

05 Mar - 12 Mar	Hawaiian Airlines
19 Mar - 23 Mar	Hawaiian Airlines
13 Mar - 23 Mar	Hawaiian Airlines
13 Mar - 22 Mar	Hawaiian Airlines
21 Mar - 28 Mar	Alaska Airlines
12 Mar - 22 Mar	Hawaiian Airlines
20 Mar - 30 Mar	Hawaiian Airlines
08 Mar - 22 Mar	Alaska Airlines
01 Mar - 05 Mar	Alaska Airlines
08 Mar - 12 Mar	Alaska Airlines
27 Mar - 11 Apr	Hawaiian Airlines
27 Mar - 05 Apr	Hawaiian Airlines

Also check the deals for one-way flights from Oakland 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 Oakland to Seoul in March from $652

Return flights