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

Return flights

04 Dec - 13 Dec	Lufthansa
04 Dec - 14 Dec	Lufthansa
01 Dec - 14 Dec	Lufthansa
01 Dec - 15 Dec	Lufthansa
01 Dec - 28 Dec	Air China
09 Dec - 26 Jan	Etihad Airways
08 Dec - 18 Dec	Finnair
10 Dec - 14 Dec	Air China
06 Dec - 14 Dec	Lufthansa
30 Dec - 18 Jan	Finnair
09 Dec - 14 Dec	Finnair
31 Dec - 15 Jan	Finnair
31 Dec - 14 Jan	Finnair
10 Dec - 15 Dec	LOT
28 Dec - 11 Jan	Air India
11 Dec - 01 Jan	Finnair
17 Dec - 11 Jan	Finnair
27 Dec - 11 Jan	Finnair
27 Dec - 18 Jan	Finnair
13 Dec - 17 Jan	LOT

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 523€

Return flights