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

Return flights

02 Jul - 08 Jul	LOT
01 Jul - 08 Jul	Finnair
03 Jul - 08 Jul	Finnair
15 Jul - 22 Jul	Finnair
14 Jul - 21 Jul	Finnair
05 Jul - 15 Jul	Finnair
08 Jul - 19 Jul	Finnair
03 Jul - 12 Jul	Finnair
22 Jul - 29 Jul	Finnair
10 Jul - 19 Jul	Finnair
27 Jul - 03 Aug	Finnair
22 Jul - 02 Aug	Finnair
29 Jul - 09 Aug	Finnair
26 Jul - 07 Aug	KLM
26 Jul - 23 Aug	KLM
31 Jul - 09 Aug	Finnair
22 Jul - 02 Aug	Korean Air	direct
31 Jul - 07 Aug	Finnair
29 Jul - 09 Aug	Korean Air	direct
31 Jul - 09 Aug	Korean Air	direct

Also check the deals for one-way flights from Seoul to Lisbon 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 Seoul to Lisbon in July from 714€

Return flights