Cheapest return flights from Seoul to Lisbon in August from $855

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

Return flights

10 Aug - 17 Aug Finnair
12 Aug - 27 Aug Finnair
17 Aug - 31 Aug Finnair
12 Aug - 26 Aug Scandinavian Airlines
26 Aug - 09 Sep Finnair
26 Aug - 30 Aug Finnair
05 Aug - 30 Aug Finnair
24 Aug - 29 Aug Finnair
24 Aug - 07 Sep Finnair
16 Aug - 23 Aug Finnair
22 Aug - 27 Aug Finnair
05 Aug - 26 Aug Etihad Airways
23 Aug - 06 Sep Finnair
30 Aug - 04 Sep Finnair
26 Aug - 04 Sep Finnair
30 Aug - 06 Sep Finnair
26 Aug - 06 Sep SWISS
29 Aug - 05 Sep Finnair
28 Aug - 04 Sep Turkish Airlines
26 Aug - 09 Sep Korean Air direct

Also check the deals for one-way flights from Seoul to Lisbon in August.

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