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

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 28/8. 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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Cheap Flights from Cardiff to Ireland

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect£28
Cork
Cork2 stops£104
Shannon
Shannon2 stops£102
Donegal
Donegal1 stop£143
Dublin
Dublindirect£28
Cork
Cork2 stops£104
Shannon
Shannon2 stops£102
Donegal
Donegal1 stop£143

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

Wed, 5 Aug - Mon, 24 Aug
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
20:45 - 21:45
DUB
-
CWL
1h 00mdirect
£28Ryanair
Wed, 5 Aug - Wed, 12 Aug
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:50 - 22:50
DUB
-
CWL
1h 00mdirect
£29Ryanair
Wed, 29 Jul - Thu, 6 Aug
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:25 - 22:25
DUB
-
CWL
1h 00mdirect
£31Ryanair
Thu, 30 Jul - Wed, 5 Aug
Ryanair Logo
22:50 - 23:55
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:50 - 22:50
DUB
-
CWL
1h 00mdirect
£31Ryanair
Fri, 21 Aug - Mon, 24 Aug
Ryanair Logo
22:45 - 23:45
CWL
-
DUB
1h 00mdirect
Ryanair Logo
20:45 - 21:45
DUB
-
CWL
1h 00mdirect
£32Ryanair
Tue, 21 Jul - Wed, 22 Jul
Ryanair Logo
23:15 - 00:15
CWL
-
DUB
1h 00mdirect
Ryanair Logo
21:50 - 22:50
DUB
-
CWL
1h 00mdirect
£33Ryanair
Tue, 21 Jul - Sat, 25 Jul
Ryanair Logo
23:15 - 00:15
CWL
-
DUB
1h 00mdirect
Ryanair Logo
05:55 - 06:55
DUB
-
CWL
1h 00mdirect
£34Ryanair
Thu, 30 Jul - Mon, 3 Aug
Ryanair Logo
22:50 - 23:55
CWL
-
DUB
1h 05mdirect
Ryanair Logo
20:45 - 21:45
DUB
-
CWL
1h 00mdirect
£34Ryanair
Sat, 8 Aug - Mon, 10 Aug
Multiple Airlines Logo
07:30 - 08:45
CWL
-
ORK
25h 15m
2 stops
Multiple Airlines Logo
20:55 - 22:50
ORK
-
CWL
25h 55m
2 stops
£122Multiple Airlines
Sat, 8 Aug - Mon, 10 Aug
Multiple Airlines Logo
07:30 - 08:45
CWL
-
ORK
25h 15m
2 stops
Multiple Airlines Logo
17:55 - 09:05
ORK
-
CWL
15h 10m
1 stop
£128Multiple Airlines
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 5 days was to Dublin, at £28 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 £28.

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 in the evening, when retur flights cost £58 on average. Morning departures are around 31% 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 £80.

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 £46, 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 January, when tickets cost £28 (return) on average. On the other hand, the most expensive months are September and August, when the average cost of return tickets is £32 and £31 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 Tuesdays and avoid leaving on a Saturday, 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 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 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 seasonMay
Cheapest flight£15
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 22% 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.

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 £18 one-way - £30 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 1536 reviews
7.7Comfort
7.2Entertainment
7.3Food
7.8Boarding
8.4Crew
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, Jun 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

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!

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

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

Was trying to change a flight but told that Canadian and local klm systems do not interact so they could not access my booking. Overall I like klm a lot but if it was important to change flights I would be very frustrated.

KLM is my favourite airline. Never ever let us down.Staff are first class.

Pretty bad. Food was awful. drinks were scarce, as if drinking an extra drink would ruin the airline. attendants were not very helpful. likely Dutch "directedness" (I cannot be bothered). Crammed flight. Entertainment in very minimal dosage. Almost all old movies and series with 1-3 episodes only. Very limited number of options available. Jesus!! it seems you need to bring your own entertainment these days even of flights that are 13 hrs long!! I would and I will avoid in the future!

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

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.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

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

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.

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 !

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

Information on your arrival and departure airports