AirHint found the following cheapest one-way flights from Seoul (GMP) to Lisbon (LIS) in December 2025 (see full year).
One-Way flights
| 10 Dec | China Eastern | ||
| 14 Dec | Jeju Air | ||
| 28 Dec | Air Busan | ||
| 20 Dec | Jin Air | ||
| 21 Dec | Jeju Air | ||
| 19 Dec | Korean Air | ||
| 09 Dec | Japan Airlines | ||
| 24 Dec | Japan Airlines | ||
| 22 Dec | Japan Airlines | ||
| 18 Dec | Japan Airlines |
Also check the deals for return flights from Seoul to Lisbon in December.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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