AirHint found the following cheapest return flights from Stockholm (ARN) to Seoul (ICN) in September 2025 (see full year).

Return flights

24 Sep - 11 Oct	Lufthansa
23 Sep - 21 Oct	Norwegian Air Sweden AOC
23 Sep - 08 Oct	Lufthansa
22 Sep - 19 Oct	Air China
23 Sep - 07 Oct	Lufthansa
25 Sep - 08 Oct	AJet
17 Sep - 25 Sep	Air China
21 Sep - 28 Sep	Air China
29 Sep - 06 Oct	Turkish Airlines
20 Sep - 23 Sep	Pegasus Airlines
21 Sep - 07 Oct	Wizz Air
29 Sep - 09 Oct	KLM
22 Sep - 01 Oct	Air China
27 Sep - 30 Sep	AJet
22 Sep - 27 Sep	Pegasus Airlines
19 Sep - 28 Sep	Qatar Airways
20 Sep - 27 Sep	AJet
17 Sep - 30 Sep	Qatar Airways
17 Sep - 26 Sep	Qatar Airways
26 Sep - 27 Sep	Ryanair

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

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 Stockholm to Seoul in September from 584€

Return flights