AirHint found the following cheapest return flights from Lisbon (LIS) to Seoul (ICN) in December 2026 (see full year).
Return flights
| 23 Dec - 03 Jan | Lufthansa | ||
| 26 Dec - 02 Jan | Finnair | ||
| 30 Dec - 03 Jan | Finnair | ||
| 27 Dec - 03 Jan | Finnair |
Also check the deals for one-way flights from Lisbon to Seoul in December.
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