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

Return flights

07 Jan - 14 Jan	Ryanair	direct
15 Jan - 21 Jan	Ryanair	direct
03 Jan - 05 Jan	Ryanair	direct
04 Jan - 07 Jan	Ryanair	direct
10 Jan - 24 Jan	Ryanair	direct
05 Jan - 13 Feb	Ryanair	direct
10 Jan - 11 Jan	Ryanair	direct
08 Jan - 11 Jan	Ryanair	direct
15 Jan - 18 Jan	Ryanair	direct
22 Jan - 24 Jan	Ryanair	direct
10 Jan - 12 Jan	Ryanair	direct
31 Jan - 01 Feb	Ryanair	direct

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

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 Dublin

Cheap car rent in Dublin

Cheapest return flights from Cardiff to Dublin in January from 67€

Return flights