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

Return flights

09 Dec - 17 Dec	Lufthansa
02 Dec - 10 Dec	Lufthansa
04 Dec - 11 Dec	Etihad Airways
01 Dec - 14 Dec	Air China
08 Dec - 15 Dec	Air China
01 Dec - 15 Dec	Air China
09 Dec - 23 Dec	Air China
12 Dec - 26 Dec	Air China
12 Dec - 20 Dec	Air China
01 Dec - 08 Dec	Air China
30 Dec - 13 Jan	Lufthansa
30 Dec - 16 Jan	Lufthansa
31 Dec - 14 Jan	Lufthansa
29 Dec - 09 Jan	Air China
28 Dec - 11 Jan	Air China
29 Dec - 16 Jan	Air China
12 Dec - 06 Jan	Air China
01 Dec - 02 Jan	Air China
30 Dec - 15 Jan	Air China
28 Dec - 13 Jan	Air China

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 $605

Return flights