AirHint found the following cheapest one-way flights from Cardiff (CWL) to Amsterdam (AMS) in May 2026 (see full year).
One-Way flights
| 11 May | Ryanair | ||
| 16 May | Ryanair | ||
| 22 May | Ryanair | ||
| 15 May | KLM | direct | |
| 16 May | KLM | direct | |
| 28 May | KLM | direct | |
| 05 May | KLM | direct | |
| 19 May | KLM | direct |
Also check the deals for return flights from Cardiff to Amsterdam in May.
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