Cheapest return flights from Cardiff to Belfast in December from $122
AirHint found the following cheapest return flights from Cardiff (CWL) to Belfast (BHD)
in December 2025 (see full year ).
Return flights
09 Dec
- 10 Dec
Aer Lingus
$ 122
direct
15 Dec
- 16 Dec
Aer Lingus
$ 122
direct
17 Dec
- 18 Dec
Aer Lingus
$ 122
direct
09 Dec
- 11 Dec
Aer Lingus
$ 122
direct
26 Dec
- 31 Dec
Aer Lingus
$ 123
direct
24 Dec
- 26 Dec
Aer Lingus
$ 123
direct
04 Dec
- 11 Dec
Aer Lingus
$ 135
direct
06 Dec
- 09 Dec
Aer Lingus
$ 135
direct
03 Dec
- 04 Dec
Aer Lingus
$ 139
direct
04 Dec
- 05 Dec
Aer Lingus
$ 148
direct
30 Dec
- 01 Jan
Aer Lingus
$ 160
direct
17 Dec
- 04 Jan
Aer Lingus
$ 183
direct
30 Dec
- 02 Jan
Aer Lingus
$ 189
direct
29 Dec
- 05 Jan
Aer Lingus
$ 209
direct
12 Dec
- 04 Jan
Ryanair
$ 258
12 Dec
- 04 Jan
Aer Lingus
$ 267
direct
30 Dec
- 03 Jan
Aer Lingus
$ 295
direct
Also check the deals for one-way flights from Cardiff to Belfast in December .
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