AirHint found the following cheapest return flights from Cork (ORK) to Seoul (ICN) in December 2025 (see full year).
Return flights
| 01 Dec - 05 Dec | Ryanair | ||
| 01 Dec - 15 Dec | Ryanair | ||
| 07 Dec - 12 Dec | Ryanair | ||
| 30 Dec - 08 Jan | KLM |
Also check the deals for one-way flights from Cork to Seoul in December.
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