AirHint found the following cheapest return flights from Cardiff (CWL) to Amsterdam (AMS) in May 2026 (see full year).

Return flights

08 May - 12 May	Ryanair
17 May - 19 May	Ryanair
03 May - 06 May	Ryanair
12 May - 18 May	Ryanair
18 May - 23 May	Ryanair
07 May - 10 May	Ryanair
05 May - 09 May	Ryanair
07 May - 10 May	KLM	direct
29 May - 02 Jun	KLM	direct
09 May - 10 May	KLM	direct
05 May - 09 May	KLM	direct
30 May - 01 Jun	KLM	direct
29 May - 13 Jun	KLM	direct
27 May - 02 Jun	KLM	direct
31 May - 07 Jun	KLM	direct
31 May - 04 Jun	KLM	direct
31 May - 06 Jun	KLM	direct
31 May - 03 Jun	KLM	direct
31 May - 05 Jun	KLM	direct
25 May - 01 Jun	KLM	direct

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

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 May from 135€

Return flights