Cheapest return flights from Dublin to Cardiff in September from $56

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

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

Return flights

13 Sep - 30 Sep Ryanair direct
13 Sep - 23 Sep Ryanair direct
04 Sep - 11 Sep Ryanair direct
04 Sep - 23 Sep Ryanair direct
25 Sep - 30 Sep Ryanair direct
18 Sep - 30 Sep Ryanair direct
18 Sep - 23 Sep Ryanair direct
11 Sep - 30 Sep Ryanair direct
11 Sep - 23 Sep Ryanair direct
02 Sep - 11 Sep Ryanair direct
13 Sep - 02 Oct Ryanair direct
25 Sep - 02 Oct Ryanair direct
25 Sep - 09 Oct Ryanair direct
25 Sep - 13 Oct Ryanair direct
18 Sep - 02 Oct Ryanair direct
20 Sep - 02 Oct Ryanair direct
20 Sep - 09 Oct Ryanair direct
25 Sep - 07 Oct Ryanair direct
18 Sep - 07 Oct Ryanair direct
28 Sep - 02 Oct Ryanair direct

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