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

Return flights

15 Sep - 26 Sep	Lufthansa
16 Sep - 22 Sep	Lufthansa
16 Sep - 24 Sep	Lufthansa
15 Sep - 21 Sep	Lufthansa
16 Sep - 21 Sep	Lufthansa
09 Sep - 16 Sep	China Eastern
14 Sep - 24 Sep	Air China
14 Sep - 22 Sep	Air China
10 Sep - 17 Sep	China Eastern
11 Sep - 23 Sep	Etihad Airways
09 Sep - 28 Oct	Finnair
18 Sep - 01 Oct	Vietnam Airlines
09 Sep - 30 Oct	Finnair
16 Sep - 23 Oct	Finnair
09 Sep - 29 Oct	Finnair
10 Sep - 24 Oct	Lufthansa
10 Sep - 29 Oct	Emirates
08 Sep - 28 Oct	Emirates
08 Sep - 30 Oct	Emirates
10 Sep - 30 Oct	Emirates

Also check the deals for one-way flights from Seoul to Paris 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 Seoul to Paris in September from $605

Return flights