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

Return flights

09 Dec - 12 Dec	Vueling Airlines
13 Dec - 15 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
03 Dec - 08 Dec	Ryanair
01 Dec - 05 Dec	Ryanair
07 Dec - 12 Dec	Ryanair
04 Dec - 08 Dec	Ryanair
05 Dec - 06 Dec	Ryanair
12 Dec - 14 Dec	Ryanair
03 Dec - 07 Jan	KLM	direct
20 Dec - 06 Jan	KLM	direct
31 Dec - 04 Jan	KLM	direct
08 Dec - 03 Jan	KLM	direct
24 Dec - 02 Jan	KLM	direct
30 Dec - 04 Jan	KLM	direct
26 Dec - 04 Jan	KLM	direct
28 Dec - 03 Jan	KLM	direct
21 Dec - 02 Jan	KLM	direct
27 Dec - 02 Jan	KLM	direct

Also check the deals for one-way flights from Cardiff to Amsterdam 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 Amsterdam in December from 118€

Return flights