AirHint found the following cheapest one-way flights from San Diego (SAN) to Seoul (ICN) in December 2025 (see full year).
One-Way flights
| 02 Dec | United | ||
| 03 Dec | United | ||
| 08 Dec | United | ||
| 07 Dec | Delta | ||
| 05 Dec | Delta | ||
| 06 Dec | United | ||
| 26 Dec | United | ||
| 28 Dec | Delta | ||
| 30 Dec | Delta | ||
| 09 Dec | Delta |
Also check the deals for return flights from San Diego to Seoul in December.
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