£15 Find Cheap Flights from Cardiff to Ireland – Compare and Save

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Cheap Flights from Cardiff to Ireland

Cheapest return flight prices found by our users on KAYAK in the last 5 days
Dublin
Dublindirect£31
Cork
Corkdirect£105
Shannon
Shannon2 stops£114
Knock
Knock2 stops£146
Dublin
Dublindirect£31
Cork
Corkdirect£105
Shannon
Shannon2 stops£114
Knock
Knock2 stops£146
Booking Insights

KAYAK's insights & trends for Cardiff to Ireland flights

Get data-powered insights and trends into flights from Cardiff to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Cardiff to Ireland flight route?

The cheapest ticket to Ireland from Cardiff found in the last 5 days was to Dublin, at £31 return. The most popular route is from Cardiff (CWL) to Dublin (DUB), and the cheapest return airline ticket found on this route in the last 5 days was £31.

What is the cheapest time of day to fly to Ireland?

The cheapest time of day to fly to Ireland is generally at night, when retur flights cost £56 on average. Morning departures are around 27% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £107.

Can I save money by flying with a stopover from Cardiff to Ireland?

No, with an average price for the route of £89, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Cardiff to Ireland?

The cheapest month for flights from Cardiff to Ireland is June, when tickets cost £41 (return) on average. On the other hand, the most expensive months are March and October, when the average cost of return tickets is £80 and £69 respectively.

What’s the cheapest day of the week to fly from Cardiff to Ireland?

If you are looking for a flight deal from Cardiff to Ireland, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Ireland, Saturday is the cheapest day to fly and Thursday is the most expensive.

How far in advance should I book a flight from Cardiff to Ireland?

To get a below-average price on a flight from Cardiff to Ireland, you should book around 2 weeks before departure, which saves you about 40% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know - Cheap tickets from Cardiff to Ireland

Low season

January

Cheapest flight

£15
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (37% more expensive on average)
Flight from Cardiff to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Cardiff to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cardiff to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Cardiff to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cardiff to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from Cardiff to Ireland

  • Looking for a cheap flight from Cardiff to Ireland? 25% of our users found tickets from Cardiff to Ireland for the following prices or less: Dublin £16 one-way - £52 round-trip

Reviews of the top airlines flying from Cardiff to Ireland

 
Need help choosing which airline to fly with from Cardiff to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1817 reviews
6.7Food
7.0Entertainment
8.1Crew
7.2Comfort
7.5Boarding
Airline reviews

We arrived at airport around 9:30 AM and checked in by 10 am! Later we were informed that flight was 20 moms and later our flight being delayed by an hour and 10 mins. The arrival gates changed twice ! Plus traveling on the bus to and fro at both delayed further! This Placed an additional pressure on us in Dublin as we had to rush, run and clear both security and US customs. Where both sides were extremely busy with other flights to US. Luckily we boarded our LA flight just 5 mins before take off! No time for bathroom breaks or any shopping! Instead of relaxing flight it becomes more stressful due to timing and delays!

6.0 GoodKrishna, Oct 2026
Read more Aer Lingus reviews

We arrived at airport around 9:30 AM and checked in by 10 am! Later we were informed that flight was 20 moms and later our flight being delayed by an hour and 10 mins. The arrival gates changed twice ! Plus traveling on the bus to and fro at both delayed further! This Placed an additional pressure on us in Dublin as we had to rush, run and clear both security and US customs. Where both sides were extremely busy with other flights to US. Luckily we boarded our LA flight just 5 mins before take off! No time for bathroom breaks or any shopping! Instead of relaxing flight it becomes more stressful due to timing and delays!

Incredible airline experience for many reasons. Only improvement, would be to have higher quality food, such as Organic and non-dairy food items. A number of us got sick. Thank you!

The legroom, seat width, inability to book my seat with the airline in advance when I paid extra to do so, the food is extremely plain and small. The cups of tea and coffee are small. Not to mention I had to pay for a g&T when I paid over $1k for a one way flight. Sheep travel better in a transporter.

It was a short flight, so not bad. No entertainment provided, nor a complimentary tea service.

Overall good. however, we were rerouted and my luggage was lost.

Ryanair delayed my flight by 7.30 hours gave us a embarrassing 4 euro voucher Got to Leeds/Bradford airport got to the car hire which I also booked through your site and they had given my car away then charged me a additional 192 pounds more for a car I didn’t even want complete scam

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

Caring & friendly crew. Most important: got us SAFELY to our destination!

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

One of the best flight experience I have had in along time. Would fly with them again.

Had no disruptions or delays. Did not order any food.

On time departure; arrived early into Faro. Air Malta operating flight, crew friendly and efficient.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

Great flight, departed only 10 mins behind schedule off the aircraft and through security in less than 15 minutes. Love flying from Cardiff so easy a quick from entrance to duty free in less than 10 minutes 😀

Ryanair is always shite. Slowest boarding possible in the most uncomfortable way. It’s like they are are tad sadistic.

The boarding process was fast and easy , but the airport sign was not up on the board, so it was hard to know the correct gate , on the airplane there was NO Snacks and NO water …. Everything needs to be purchase …. It’s not worthy for the price we paid !

More options for your flight from Cardiff to Ireland

Complete your trip to Ireland with a hotel stay or car hire