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

Return flights

14 Aug - 20 Aug	Ryanair
19 Aug - 20 Aug	Ryanair
23 Aug - 27 Aug	Ryanair
14 Aug - 16 Aug	Ryanair
12 Aug - 13 Aug	Ryanair
17 Aug - 20 Aug	Ryanair
14 Aug - 15 Aug	Ryanair
28 Aug - 30 Aug	Ryanair
19 Aug - 21 Aug	Ryanair
12 Aug - 15 Aug	Ryanair
29 Aug - 04 Sep	KLM	direct
30 Aug - 18 Sep	KLM	direct
17 Aug - 06 Sep	KLM	direct
30 Aug - 01 Sep	Ryanair
26 Aug - 02 Sep	KLM	direct
29 Aug - 02 Sep	KLM	direct
30 Aug - 01 Sep	KLM	direct
31 Aug - 02 Sep	KLM	direct

Also check the deals for one-way flights from Cardiff to Amsterdam in August.

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 August from 142€

Return flights