AirHint found the following cheapest return flights from Lisbon (LIS) to Seoul (ICN) in July 2026 (see full year).

Return flights

07 Jul - 21 Jul	Finnair
14 Jul - 21 Jul	Finnair
15 Jul - 22 Jul	Finnair
15 Jul - 29 Jul	Finnair
01 Jul - 10 Jul	Finnair
28 Jul - 11 Aug	Finnair
29 Jul - 12 Aug	Finnair
13 Jul - 25 Jul	Finnair
22 Jul - 10 Aug	Etihad Airways
24 Jul - 12 Aug	Finnair
24 Jul - 19 Aug	Finnair
15 Jul - 31 Jul	Finnair
26 Jul - 09 Aug	Etihad Airways
12 Jul - 24 Jul	Finnair
07 Jul - 22 Jul	Vueling Airlines
02 Jul - 16 Jul	Transavia France
25 Jul - 08 Aug	Ryanair
25 Jul - 14 Aug	easyJet
31 Jul - 07 Aug	Turkish Airlines

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 783€

Return flights