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

Return flights

09 Jul - 23 Jul	Etihad Airways
09 Jul - 21 Jul	Etihad Airways
23 Jul - 06 Aug	Etihad Airways
09 Jul - 14 Jul	Etihad Airways
16 Jul - 23 Jul	Etihad Airways
03 Jul - 12 Jul	Etihad Airways
06 Jul - 15 Jul	Etihad Airways
07 Jul - 11 Jul	TAP
21 Jul - 04 Aug	Ryanair
02 Jul - 09 Jul	Etihad Airways
02 Jul - 08 Jul	Etihad Airways
02 Jul - 15 Jul	Etihad Airways
27 Jul - 09 Aug	Etihad Airways
11 Jul - 09 Aug	easyJet
25 Jul - 08 Aug	Finnair
30 Jul - 15 Aug	easyJet
28 Jul - 15 Aug	Wizz Air

Also check the deals for one-way flights from Lisbon 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 Lisbon to Seoul in July from $734

Return flights