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

Return flights

13 Dec - 15 Dec	Vueling Airlines
06 Dec - 08 Dec	Ryanair
05 Dec - 10 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
03 Dec - 10 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
13 Dec - 17 Dec	Ryanair
04 Dec - 06 Dec	Ryanair
04 Dec - 08 Dec	Ryanair
12 Dec - 13 Dec	Ryanair
26 Dec - 01 Jan	KLM	direct
31 Dec - 04 Jan	KLM	direct
29 Dec - 01 Jan	KLM	direct
20 Dec - 01 Jan	KLM	direct
29 Dec - 04 Jan	KLM	direct
15 Dec - 05 Jan	KLM	direct
30 Dec - 06 Jan	KLM	direct
31 Dec - 03 Jan	KLM	direct
14 Dec - 15 Jan	KLM	direct
30 Dec - 04 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 134€

Return flights