Cheap flights from Cardiff to Dublin

from as little as £187

3 nights in Dublin, departing Cardiff on 20 / Feb / 2025 with Aer Lingus (price found 13 minutes ago)

Subject to availability, prices correct of the last 24 hours
Dublin

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The Cardiff / Dublin route

All 300 km of it

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Dublin flight facts

What you need to know

Alternative flights from the UK to Dublin

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Dublin

Today alone, Netflights has searched over 123 flights. 20 / Feb / 2025 is currently the lowest priced day of the year to fly the Cardiff/Dublin route. There are around 41 flights on any given week from the UK to Dublin and the cheapest month to fly right now is February.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

2 °C

AVG

9 °C

HIGHEST

18 °C

Rainfall (mm)
LOWEST

49 mm

AVG

61.2 mm

HIGHEST

75 mm

Key facts about Dublin

How to get cheap flights from Cardiff to Dublin

Tips and advice from our flight experts

You’ve searched for flights from Cardiff to Dublin. 41 flights go to or via Dublin every week, and we've searched them all to make it easy for you to compare your flight options. On average, Aer Lingus has the cheapest flights, so look out for them in your search results.

When you fly from Cardiff to Dublin, you'll have one airlines to choose from for your 300 km journey. If you're planning to fly in peak season, make sure you book in advance to get a reasonable price. Or you could hold on and try to get a last-minute bargain.

If you're fairly flexible about when you want to fly to Dublin, searching by month will show you the cheapest times to go. It’s also worth looking out for flights operated by Aer Lingus, as they're the most popular airlines for this journey.

It takes about 1 hrs 5 mins to fly from Cardiff to Dublin. Once you’ve chosen your flight, go through and fill out your details to complete your booking. If you haven’t yet sorted your hotel or car hire, take a look at our competitive rates – then you can book your flights and accommodation in one go.

Other popular destinations near Dublin

Where other people are flying to

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