AirHint found the following cheapest return flights from Seoul (GMP) to Porto (OPO) in May 2026 (see full year).
Return flights
| 30 May - 08 Jun | EVA Air | ||
| 09 May - 13 May | EVA Air | ||
| 23 May - 02 Jun | EVA Air | ||
| 22 May - 31 May | EVA Air | ||
| 02 May - 05 May | EVA Air | ||
| 02 May - 10 May | EVA Air |
Also check the deals for one-way flights from Seoul to Porto in May.
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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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