Cheapest return flights from Cardiff to Belfast in December from 131€

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

Return flights

04 Dec - 06 Dec Aer Lingus direct
05 Dec - 08 Dec Aer Lingus direct
05 Dec - 07 Dec Aer Lingus direct
18 Dec - 20 Dec Aer Lingus direct
17 Dec - 27 Dec Aer Lingus direct
27 Dec - 30 Dec Aer Lingus direct
27 Dec - 04 Jan Aer Lingus direct
07 Dec - 14 Dec Aer Lingus direct
31 Dec - 04 Jan Aer Lingus direct
29 Dec - 04 Jan Aer Lingus direct

Also check the deals for one-way 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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