AirHint found the following cheapest return flights from Lisbon (LIS) to Seoul (ICN) in June 2025 (see full year).

Return flights

25 Jun - 02 Jul	easyJet
22 Jun - 05 Jul	Etihad Airways
27 Jun - 04 Jul	easyJet
30 Jun - 09 Jul	TAP
26 Jun - 03 Jul	Ryanair
27 Jun - 06 Jul	easyJet
29 Jun - 12 Jul	Ryanair
24 Jun - 28 Jun	Air France
29 Jun - 06 Jul	KLM
23 Jun - 25 Jun	easyJet
23 Jun - 26 Jun	KLM
22 Jun - 05 Jul	Korean Air	direct

Also check the deals for one-way flights from Lisbon to Seoul 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 Lisbon to Seoul in June from $944

Return flights