£23 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 13/10. 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.
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Best Ireland Flight Deals from Cardiff

Cheapest return prices found by our users on KAYAK in the last 72 hours

Dublin
Dublindirect£32
Cork
Cork2 stops£161
Shannon
Shannon2 stops£1,057
Knock
Knock2 stops£269

Cheap Flight Deals from Cardiff to Ireland (CWL-IE0)

 
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.

Recent return flight deals from Cardiff to Ireland

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Cardiff to Ireland.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Ryanair Logo
16:20 - 17:20CWL-DUB
1h 00mdirect
Ryanair Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
£47Ryanair
Find Deal
Tue, 13 May - Sat, 17 May
Ryanair Logo
12:25 - 13:25CWL-DUB
1h 00mdirect
Ryanair Logo
21:50 - 22:50DUB-CWL
1h 00mdirect
£53Ryanair
Find Deal
Fri, 23 May - Sat, 24 May
 Logo
20:20 - 08:55CWL-DUB
12h 35m1 stop
 Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
Thu, 26 Jun - Sat, 28 Jun
 Logo
17:05 - 09:10CWL-DUB
40h 05m3 stops
 Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
Tue, 13 May - Sat, 17 May
Aer Lingus Logo
12:00 - 21:15CWL-DUB
9h 15m2 stops
Aer Lingus Logo
19:55 - 21:00DUB-CWL
1h 05mdirect
£219Aer Lingus
Find Deal
Thu, 22 May - Sun, 25 May
KLM Logo
09:50 - 16:40CWL-DUB
6h 50m1 stop
KLM Logo
05:55 - 16:45DUB-CWL
10h 50m1 stop
£344KLM
Find Deal
Mon, 7 Jul - Wed, 9 Jul
KLM Logo
17:15 - 22:25CWL-DUB
5h 10m1 stop
KLM Logo
08:55 - 17:05DUB-CWL
8h 10m1 stop
£392KLM
Find Deal
Thu, 19 Jun - Sat, 21 Jun
Aer Lingus Logo
12:00 - 09:15CWL-DUB
21h 15m2 stops
Aer Lingus Logo
06:30 - 11:30DUB-CWL
29h 00m2 stops
£426Aer Lingus
Find Deal
Thu, 26 Jun - Sat, 28 Jun
British Airways Logo
12:00 - 18:20CWL-DUB
30h 20m2 stops
British Airways Logo
10:55 - 11:30DUB-CWL
24h 35m2 stops
£484British Airways
Find Deal
Mon, 7 Jul - Wed, 9 Jul
British Airways Logo
12:00 - 19:25CWL-DUB
7h 25m2 stops
British Airways Logo
10:30 - 11:30DUB-CWL
25h 00m2 stops
£532British Airways
Find Deal
Thu, 22 May - Sun, 25 May

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 price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Cardiff to Ireland.
The cheapest ticket to Ireland from Cardiff found in the last 72 hours was to Dublin, at £31 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 £31.

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

The average price for all round-trip flights from Cardiff to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Ireland is generally at night, when retur flights cost £68 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is £108.

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 £49 (return) on average. On the other hand, the most expensive months are February and July, when the average cost of return tickets is £105 and £87 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 Saturdays and avoid leaving on a Friday, 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 the flight from Cardiff to Ireland, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know - Cheap tickets from Cardiff to Ireland

Low season

October

High season

August

Cheapest flight

£23
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 24% 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.

See more FAQs

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 £53 one-way - £60 round-trip

Top 3 airlines serving 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 1333 reviews
7.7Comfort
7.8Boarding
8.4Crew
7.1Entertainment
7.2Food
Airline reviews

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.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

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.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

ontime and super quick boarding and disembarking. I made it in 6 min from airplane through passport control to the train platformin Cologne. Amazingly quick airport.

There plane had a technical pricken so we had to disembark, but the replacement aircraft was provided within one hour so there was not much delay.

Miserable staff did not want to be there. Very poor atmosphere boarding. Then just basic flight.

We were diverted to warsaw and there was zero information. We were just forced to disembark and off we go good luck the reat of the way. We all had to go our ways to find a way home!!!! Horrible horrible and it cost us alot of money to get a hotel and trains 4:30 pm next day.

all fine - did not have food - there was no entertainment

Long delay was made worse by lack of information and long time in queue waiting for the plane to arrive

Delayed delayed delayed and then cancelled very late not allowing for too much time to find a room for the night

Blood contaminated tissue was stuffed to the back of the seat in front of us.

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 😀

My flight was delayed 1 hour. My Mood was not great

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

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