AirHint found the following cheapest return flights from San Diego (SAN) to Seoul (ICN) in September 2026 (see full year).
Return flights
| 03 Sep - 14 Sep | Alaska Airlines | ||
| 06 Sep - 16 Sep | Alaska Airlines | ||
| 04 Sep - 14 Sep | United | ||
| 24 Sep - 04 Oct | Delta |
Also check the deals for one-way flights from San Diego to Seoul in September.
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