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

Return flights

02 Dec - 15 Dec	Lufthansa
09 Dec - 17 Dec	Lufthansa
03 Dec - 10 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
01 Dec - 11 Dec	Lufthansa
04 Dec - 17 Dec	Lufthansa
04 Dec - 13 Dec	Lufthansa
02 Dec - 13 Dec	Lufthansa
01 Dec - 08 Dec	LOT
02 Dec - 16 Dec	LOT
30 Dec - 13 Jan	Finnair
29 Dec - 12 Jan	Finnair
31 Dec - 14 Jan	Finnair
28 Dec - 25 Jan	Air India
30 Dec - 09 Jan	Finnair
27 Dec - 27 Jan	Finnair
25 Dec - 25 Jan	Finnair
28 Dec - 29 Jan	Finnair
27 Dec - 11 Jan	Finnair
28 Dec - 11 Jan	Finnair

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

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 December from $611

Return flights