Cheapest return flights from Cardiff to Dublin in September from $52

Best time to book flights for Cardiff (CWL) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Cardiff (CWL) to Dublin (DUB) in September 2025 (see full year).

Return flights

11 Sep - 27 Sep Ryanair direct
11 Sep - 25 Sep Ryanair direct
11 Sep - 02 Oct Ryanair direct
04 Sep - 25 Sep Ryanair direct
20 Sep - 27 Sep Ryanair direct
20 Sep - 25 Sep Ryanair direct
20 Sep - 02 Oct Ryanair direct
20 Sep - 11 Oct Ryanair direct
13 Sep - 27 Sep Ryanair direct
13 Sep - 25 Sep Ryanair direct
13 Sep - 02 Oct Ryanair direct
04 Sep - 07 Sep Ryanair direct
22 Sep - 27 Sep Ryanair direct
22 Sep - 25 Sep Ryanair direct
27 Sep - 02 Oct Ryanair direct
27 Sep - 11 Oct Ryanair direct
27 Sep - 18 Oct Ryanair direct
22 Sep - 02 Oct Ryanair direct
22 Sep - 11 Oct Ryanair direct
15 Sep - 02 Oct Ryanair direct

Also check the deals for one-way flights from Cardiff to Dublin 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.

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