Cheapest return flights from Cardiff to Dublin in September from 86€

AirHint found the following cheapest return flights from Cardiff (CWL) to Dublin (DUB) in September 2026 (see full year).

Return flights

25 Sep - 27 Sep Ryanair direct
17 Sep - 06 Oct Ryanair direct
10 Sep - 27 Sep Ryanair direct
17 Sep - 05 Oct Ryanair direct
21 Sep - 05 Oct Ryanair direct
21 Sep - 06 Oct Ryanair direct
17 Sep - 27 Sep Ryanair direct
21 Sep - 27 Sep Ryanair direct
25 Sep - 05 Oct Ryanair direct
25 Sep - 06 Oct Ryanair direct
10 Sep - 14 Sep Ryanair direct
11 Sep - 13 Sep Ryanair direct
19 Sep - 20 Sep Ryanair direct
16 Sep - 05 Oct KLM
09 Sep - 14 Sep KLM
21 Sep - 23 Sep Ryanair

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

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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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