Cheapest return flights from Seoul to Lisbon in September from $832

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

Return flights

21 Sep - 28 Sep Philippine Airlines
02 Sep - 10 Sep Lufthansa
02 Sep - 16 Sep Lufthansa
15 Sep - 24 Sep Etihad Airways
14 Sep - 22 Sep Lufthansa
14 Sep - 23 Sep Finnair
01 Sep - 15 Sep Finnair
07 Sep - 16 Sep Finnair
01 Sep - 07 Sep Finnair
11 Sep - 20 Sep Etihad Airways
27 Sep - 07 Oct Finnair
16 Sep - 02 Oct Finnair
28 Sep - 04 Oct Finnair
27 Sep - 25 Oct Etihad Airways
17 Sep - 02 Oct Air France
27 Sep - 02 Oct Finnair
23 Sep - 05 Oct Finnair
21 Sep - 02 Oct KLM
23 Sep - 04 Oct Finnair
23 Sep - 02 Oct Air France

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

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