AirHint found the following cheapest one-way flights from Seoul (GMP) to Porto (OPO) in April 2026 (see full year).
One-Way flights
| 16 Apr | Air China | ||
| 03 Apr | EVA Air | ||
| 22 Apr | EVA Air | ||
| 01 Apr | EVA Air | ||
| 04 Apr | EVA Air |
Also check the deals for return flights from Seoul to Porto in April.
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