AirHint found the following cheapest return flights from Cardiff (CWL) to Belfast (BHD) in October 2026 (see full year).
Return flights
| 22 Oct - 25 Oct | Aer Lingus | direct | |
| 30 Oct - 03 Nov | Aer Lingus | direct | |
| 19 Oct - 22 Oct | Aer Lingus | direct | |
| 30 Oct - 02 Nov | Aer Lingus | direct |
Also check the deals for one-way flights from Cardiff to Belfast in October.
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