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

Return flights

09 Jun - 23 Jun	Etihad Airways
10 Jun - 17 Jun	Lufthansa
14 Jun - 21 Jun	LOT
08 Jun - 15 Jun	LOT
08 Jun - 14 Jun	LOT
17 Jun - 24 Jun	Lufthansa
01 Jun - 09 Jun	Lufthansa
03 Jun - 10 Jun	Lufthansa
01 Jun - 10 Jun	Lufthansa
03 Jun - 09 Jun	Air France
28 Jun - 07 Jul	LOT
26 Jun - 10 Jul	Lufthansa

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

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 Seoul to Porto in June from $652

Return flights