AirHint found the following cheapest return flights from Cardiff (CWL) to Bucharest (OTP) in March 2026 (see full year).
Return flights
| 21 Mar - 28 Mar | Ryanair | ||
| 20 Mar - 28 Mar | Ryanair | ||
| 19 Mar - 28 Mar | Ryanair | ||
| 29 Mar - 31 Mar | Ryanair | ||
| 13 Mar - 16 Mar | Ryanair | ||
| 14 Mar - 15 Mar | Air France | ||
| 25 Mar - 26 Mar | Ryanair |
Also check the deals for one-way flights from Cardiff to Bucharest in March.
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