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

Return flights

14 Oct - 24 Oct	Lufthansa
14 Oct - 23 Oct	Lufthansa
02 Oct - 21 Oct	Lufthansa
16 Oct - 23 Oct	Lufthansa
28 Oct - 28 Nov	Etihad Airways
01 Oct - 17 Oct	Lufthansa
01 Oct - 14 Oct	Lufthansa
02 Oct - 14 Oct	Lufthansa
02 Oct - 13 Oct	Lufthansa
02 Oct - 22 Oct	Lufthansa
23 Oct - 06 Nov	Etihad Airways
28 Oct - 13 Nov	Etihad Airways
21 Oct - 11 Nov	Etihad Airways
21 Oct - 03 Nov	Etihad Airways
27 Oct - 06 Nov	Etihad Airways
26 Oct - 06 Nov	Etihad Airways
29 Oct - 26 Nov	Etihad Airways
28 Oct - 25 Nov	Etihad Airways
22 Oct - 11 Nov	Lufthansa
01 Oct - 16 Oct	Lufthansa

Also check the deals for one-way flights from Paris to Seoul in October.

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 October from 543€

Return flights