£17 Find Cheap Flights from Cardiff to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Ireland departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Cardiff to Ireland

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect£37
Cork
Cork2 stops£162
Shannon
Shannon2 stops£174
Dublin
Dublindirect£37
Cork
Cork2 stops£162
Shannon
Shannon2 stops£174

Book Cheap Cardiff to Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Ireland

Tue, 7 Oct - Thu, 9 Oct
Ryanair Logo
16:20 - 17:20CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£37Ryanair
Find Deal
Sun, 7 Sep - Sun, 21 Sep
Ryanair Logo
11:00 - 12:00CWL-DUB
1h 00mdirect
Ryanair Logo
09:35 - 10:35DUB-CWL
1h 00mdirect
£39Ryanair
Find Deal
Mon, 22 Sep - Fri, 26 Sep
Ryanair Logo
13:10 - 14:10CWL-DUB
1h 00mdirect
Ryanair Logo
11:00 - 12:00DUB-CWL
1h 00mdirect
£50Ryanair
Find Deal
Thu, 25 Sep - Sun, 28 Sep
Ryanair Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
Ryanair Logo
09:35 - 10:35DUB-CWL
1h 00mdirect
£51Ryanair
Find Deal
Fri, 26 Sep - Sun, 28 Sep
Ryanair Logo
12:25 - 13:25CWL-DUB
1h 00mdirect
Ryanair Logo
09:35 - 10:35DUB-CWL
1h 00mdirect
£53Ryanair
Find Deal
Sat, 30 Aug - Sat, 6 Sep
Ryanair Logo
09:00 - 10:00CWL-DUB
1h 00mdirect
Ryanair Logo
06:30 - 07:30DUB-CWL
1h 00mdirect
£54Ryanair
Find Deal
Tue, 21 Oct - Sun, 26 Oct
 Logo
20:20 - 17:00CWL-DUB
20h 40m2 stops
 Logo
08:45 - 09:50DUB-CWL
1h 05mdirect
Sat, 4 Oct - Sat, 11 Oct
KLM Logo
17:35 - 22:25CWL-ORK
4h 50m1 stop
KLM Logo
06:00 - 17:05ORK-CWL
11h 05m1 stop
£318KLM
Find Deal
Sat, 11 Oct - Sun, 12 Oct
KLM Logo
17:35 - 22:25CWL-ORK
4h 50m1 stop
KLM Logo
17:10 - 16:45ORK-CWL
23h 35m1 stop
£322KLM
Find Deal
Sat, 11 Oct - Sun, 12 Oct
KLM Logo
17:35 - 22:25CWL-ORK
4h 50m1 stop
KLM Logo
15:25 - 09:15ORK-CWL
41h 50m2 stops
£401KLM
Find Deal
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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Cardiff found in the last 72 hours was to Dublin, at £35 return. The most popular route is from Cardiff (CWL) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £35.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £75, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Ireland is September, when tickets cost £51 (return) on average. On the other hand, the most expensive months are February and July, when the average cost of return tickets is £101 and £89 respectively.

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

The average price of all round-trip flights from Cardiff to Ireland clicked on KAYAK for each day over the last 12 months.

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

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cardiff to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

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 50% 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 seasonDecember
Cheapest flight£17
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 30% lower 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.

  • 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 £89 on average. Morning departures are around 2% 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 £110.

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 £23 one-way - £51 round-trip

Reviews of the top 3 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.
7.8
KLMOverall score based on 1388 reviews
7.7Comfort
7.3Food
8.4Crew
7.1Entertainment
7.8Boarding
Airline reviews

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

2.0 MediocreIlja, Aug 2025AGP - AMS
Read more KLM reviews

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

Overall it was good experience and it was my first trip with Aer Lingus. One thing I was embarrassed was that someone occupied my seat so I was asked to use another seat. Due to this unhappy happening I almost missed the connecting flight because the random seat was far from the flight door. Food was fine, I liked the macaroni and cheese with fresh bread.

I was very disappointed that the online sys allowed me to get the boarding pass for the second leg of the trip, when I clearly request it for both flights!

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

Excellent as far as the flight is concerned. Faro airport passport check was a huge delay and worrisome re missing the flight. 45 minutes there through passport control

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

The seat pitch was a little tight for me, but I survived. There was a volatile, enraged passenger a couple of rows ahead of me and the cabin crew defused and resolved the situation calmly, quickly, and successfully.

My experience with Aer Lingus was nice, and I would be happy to fly with them again. However, my seat pocket had not been cleaned and had dirty wipes in it. I have flown with Aer Lingus before and do not recall anything like that happening, so presumably this was a one-off kind of thing. For the meal, I asked if there was possibly one without my allergens and the flight attendant gave me the one she thought would be fine. She did not know what allergens were in it, but when I received the meal the allergens were all listed right on the top of the package, so I was confused about why she didn’t know how to check what they were. In future, I will see if it’s possible to request an allergen-free meal ahead of time. But overall, I had a pleasant experience. My experience with Underpricer was very unenjoyable and because of them I do not plan to book through Kayak in the future. I have used Kayak numerous times, but this booking experience was so unpleasant. They called me numerous times and also emailed me to try to get me to select a seat. However, when I had a question later on, I was kept on hold for 20/30 minutes before I finally hung up. I also emailed them but never received a response, which I did not appreciate, especially given their previous frequent calls when they wanted something from me.

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.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

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

On time arrival but the aircraft had seen better days and needed a deep clean.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Flight was fine, crew were good, cabin director spoke far too much; disembarking at Dublin Airport and entry into the terminal building was just dreadful, like entering the back door of a neglected factory building. What an awful impression it must give to first time visitors to Ireland.

Straight forward checking as long as you have completed every single detail online, prior to checking day. Efficient boarding, seating is ok for a two hour flight. Fulfilledour travel requirements from Manchester to Marseille.

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

I bought my flight, insurance etc early and paid over £200. But had i waited until closer the time the price was much cheaper, i appreciate that it could've been more expensive but it wasn't. A better discount for booking early would be better than your current one

Everything you need to know for your flight from Cardiff to Ireland

Information on your arrival and departure airports

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