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

Return flights

21 Sep - 06 Oct	Lufthansa
14 Sep - 05 Oct	Lufthansa
02 Sep - 15 Sep	Lufthansa
03 Sep - 15 Sep	Lufthansa
08 Sep - 15 Sep	Lufthansa
09 Sep - 16 Sep	Lufthansa
02 Sep - 16 Sep	Lufthansa
03 Sep - 17 Sep	Lufthansa
03 Sep - 08 Sep	Lufthansa
15 Sep - 30 Sep	Finnair
01 Sep - 30 Sep	Finnair
23 Sep - 30 Sep	Finnair
21 Sep - 02 Oct	Finnair
29 Sep - 06 Oct	SWISS
19 Sep - 04 Oct	Finnair
28 Sep - 05 Oct	Vietnam Airlines
28 Sep - 08 Oct	Vietnam Airlines
30 Sep - 15 Oct	Lufthansa
27 Sep - 13 Oct	SWISS
29 Sep - 06 Oct	Air France	direct

Also check the deals for one-way flights from Paris 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 Paris to Seoul in September from $600

Return flights