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

Return flights

07 Jul - 15 Jul	KLM
07 Jul - 16 Jul	KLM
07 Jul - 21 Jul	easyJet
05 Jul - 18 Jul	Ryanair
07 Jul - 18 Jul	easyJet
10 Jul - 17 Jul	Air France
22 Jul - 05 Aug	Ryanair
02 Jul - 14 Jul	Vueling Airlines
03 Jul - 14 Jul	Ryanair
15 Jul - 22 Jul	Air France
05 Jul - 12 Jul	Ryanair
21 Jul - 03 Aug	Turkish Airlines
19 Jul - 02 Aug	Ryanair
25 Jul - 25 Aug	Ryanair
28 Jul - 08 Aug	Ryanair
27 Jul - 26 Aug	KLM
23 Jul - 01 Aug	KLM
30 Jul - 27 Aug	Ryanair
30 Jul - 06 Aug	KLM

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 830€

Return flights