AirHint found the following cheapest one-way flights from Seoul (ICN) to Lisbon (LIS) in September 2026 (see full year).
One-Way flights
| 19 Sep | Vietnam Airlines | ||
| 21 Sep | Etihad Airways | ||
| 15 Sep | Lufthansa | ||
| 01 Sep | Lufthansa | ||
| 10 Sep | Air France | ||
| 05 Sep | Finnair | ||
| 11 Sep | Finnair | ||
| 27 Sep | Finnair | ||
| 20 Sep | Etihad Airways | ||
| 11 Sep | Korean Air | direct |
Also check the deals for return flights from Seoul to Lisbon in September.
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