AirHint found the following cheapest one-way flights from San Diego (SAN) to Seoul (ICN) in April 2026 (see full year).
One-Way flights
| 08 Apr | Alaska Airlines | ||
| 27 Apr | Air Canada | ||
| 29 Apr | Air Canada | ||
| 18 Apr | Frontier Airlines | ||
| 23 Apr | United | ||
| 10 Apr | Frontier Airlines |
Also check the deals for return flights from San Diego to Seoul in April.
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