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

Return flights

04 Sep - 18 Sep	China Eastern
17 Sep - 25 Sep	Air India
09 Sep - 17 Sep	easyJet
01 Sep - 14 Sep	easyJet
30 Sep - 23 Oct	Etihad Airways
28 Sep - 09 Oct	Etihad Airways
30 Sep - 09 Oct	Etihad Airways
18 Sep - 23 Oct	Etihad Airways
23 Sep - 13 Oct	Etihad Airways
30 Sep - 13 Oct	Etihad Airways
04 Sep - 16 Oct	Etihad Airways
03 Sep - 08 Oct	Etihad Airways
24 Sep - 14 Oct	Air India
06 Sep - 17 Sep	easyJet
11 Sep - 26 Sep	Air India
14 Sep - 26 Sep	Air India
07 Sep - 16 Sep	Air India
04 Sep - 19 Sep	Air India
18 Sep - 25 Sep	Air India
26 Sep - 10 Oct	Air India

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 567€

Return flights