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

Return flights

31 Dec - 02 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
31 Dec - 01 Jan	Ryanair
29 Dec - 02 Jan	Ryanair
30 Dec - 06 Jan	KLM
31 Dec - 07 Jan	KLM
31 Dec - 03 Jan	KLM
26 Dec - 27 Dec	Air France
26 Dec - 29 Dec	KLM
27 Dec - 27 Dec	KLM
28 Dec - 02 Jan	KLM
30 Dec - 04 Jan	KLM
28 Dec - 31 Dec	KLM
27 Dec - 18 Jan	KLM
26 Dec - 26 Dec	Air France
31 Dec - 31 Dec	KLM
29 Dec - 31 Dec	KLM
28 Dec - 30 Dec	KLM
28 Dec - 29 Dec	KLM
28 Dec - 28 Dec	KLM

Also check the deals for one-way flights from Cardiff to Paris 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 Cardiff to Paris in December from 268€

Return flights