Cheapest one-way flights from Cardiff to Belfast in December from 54€

AirHint found the following cheapest one-way flights from Cardiff (CWL) to Belfast (BHD) in December 2025 (see full year).

One-Way flights

06 Dec Aer Lingus direct
30 Dec Aer Lingus direct
24 Dec Aer Lingus direct

Also check the deals for return flights from Cardiff to Belfast in December.

Skyscanner

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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