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

Return flights

01 Jul - 17 Jul	Finnair
12 Jul - 22 Jul	Finnair
13 Jul - 23 Jul	Finnair
25 Jul - 07 Aug	Turkish Airlines
24 Jul - 15 Aug	Turkish Airlines
25 Jul - 14 Aug	Turkish Airlines
25 Jul - 15 Aug	Turkish Airlines
26 Jul - 16 Aug	Turkish Airlines
24 Jul - 02 Aug	Turkish Airlines
19 Jul - 26 Jul	Finnair
24 Jul - 14 Aug	Korean Air	direct
19 Jul - 26 Jul	Korean Air	direct

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 755€

Return flights