Cheapest one-way flights from Cardiff to Belfast in September from 52€

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

One-Way flights

29 Sep Aer Lingus direct
30 Sep Aer Lingus direct
21 Sep Aer Lingus direct
23 Sep Aer Lingus direct
20 Sep Aer Lingus direct
27 Sep Aer Lingus direct
28 Sep Ryanair
22 Sep Ryanair
26 Sep Ryanair
28 Sep Aer Lingus direct

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

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.

Book a cheap hotel in Belfast

Cheap car rent in Belfast

Feel free to contact us with any feedback or request another flight research.