AirHint found the following cheapest return flights from Porto (OPO) to Seoul (ICN) in July 2025 (see full year).

Return flights

10 Jul - 13 Jul	Wizz Air Malta
23 Jul - 27 Jul	Ryanair
11 Jul - 18 Jul	TAP
31 Jul - 03 Aug	Ryanair
09 Jul - 20 Jul	Ryanair
12 Jul - 19 Jul	TAP
21 Jul - 24 Jul	Ryanair
11 Jul - 13 Jul	TAP
27 Jul - 26 Aug	KLM
21 Jul - 28 Jul	KLM
23 Jul - 25 Jul	KLM
10 Jul - 21 Aug	Lufthansa

Also check the deals for one-way flights from Porto to Seoul in July.

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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Cheapest return flights from Porto to Seoul in July from $1128

Return flights