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

Return flights

24 Dec - 27 Dec	KLM	direct
23 Dec - 27 Dec	KLM	direct
29 Dec - 02 Jan	KLM	direct
06 Dec - 07 Dec	KLM	direct
28 Dec - 01 Jan	KLM	direct
27 Dec - 31 Dec	KLM	direct
27 Dec - 29 Dec	KLM	direct
24 Dec - 28 Dec	KLM	direct
22 Dec - 02 Jan	KLM	direct
13 Dec - 16 Dec	KLM	direct
06 Dec - 09 Dec	KLM	direct
27 Dec - 01 Jan	KLM	direct
15 Dec - 19 Dec	KLM	direct
26 Dec - 31 Dec	KLM	direct
21 Dec - 02 Jan	KLM	direct
22 Dec - 03 Jan	KLM	direct
29 Dec - 03 Jan	KLM	direct
30 Dec - 03 Jan	KLM	direct
21 Dec - 03 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.

Book a cheap hotel in Amsterdam

Cheap car rent in Amsterdam

Cheapest return flights from Cardiff to Amsterdam in December from 166€

Return flights