AirHint found the following cheapest return flights from Porto (OPO) to Seoul (ICN) in May 2026 (see full year).

Return flights

05 May - 19 May	Air Europa
29 May - 11 Jun	Ryanair
10 May - 25 May	Ryanair
26 May - 04 Jun	LOT
05 May - 11 May	Iberia
20 May - 30 May	easyJet
07 May - 23 May	Ryanair
10 May - 23 May	Ryanair
01 May - 14 May	Ryanair
24 May - 04 Jun	Ryanair
27 May - 10 Jun	Lufthansa
19 May - 29 May	easyJet
23 May - 06 Jun	easyJet
11 May - 22 May	Air Europa
22 May - 29 May	Ryanair
30 May - 06 Jun	Air France

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

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 May from $820

Return flights