AirHint found the following cheapest return flights from Cardiff (CWL) to Singapore (SIN) in March 2026 (see full year).
Return flights
| 23 Mar - 30 Mar | KLM | ||
| 07 Mar - 12 Mar | KLM | ||
| 20 Mar - 26 Mar | KLM | ||
| 22 Mar - 26 Mar | Etihad Airways |
Also check the deals for one-way flights from Cardiff to Singapore in March.
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