£15 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 5/8. 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.
1 adult
1 adult, Economy, 0 bags

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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£106
Shannon
Shannon2 stops£108
Knock
Knock2 stops£149
Dublin
Dublindirect£28
Cork
Cork2 stops£106
Shannon
Shannon2 stops£108
Knock
Knock2 stops£149

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, 1 Jul - Thu, 2 Jul
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:25 - 22:25
DUB
-
CWL
1h 00mdirect
£28Ryanair
Tue, 21 Jul - Thu, 23 Jul
Ryanair Logo
23:15 - 00:15
CWL
-
DUB
1h 00mdirect
Ryanair Logo
21:25 - 22:25
DUB
-
CWL
1h 00mdirect
£29Ryanair
Wed, 1 Jul - Tue, 21 Jul
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:50 - 22:50
DUB
-
CWL
1h 00mdirect
£30Ryanair
Wed, 1 Jul - Sat, 4 Jul
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
05:55 - 06:55
DUB
-
CWL
1h 00mdirect
£31Ryanair
Fri, 3 Jul - Mon, 6 Jul
Ryanair Logo
22:45 - 23:45
CWL
-
DUB
1h 00mdirect
Ryanair Logo
20:45 - 21:45
DUB
-
CWL
1h 00mdirect
£31Ryanair
Tue, 7 Jul - Sat, 11 Jul
Ryanair Logo
23:15 - 00:15
CWL
-
DUB
1h 00mdirect
Ryanair Logo
05:55 - 06:55
DUB
-
CWL
1h 00mdirect
£32Ryanair
Wed, 1 Jul - Sat, 4 Jul
Ryanair Logo
23:15 - 00:20
CWL
-
DUB
1h 05mdirect
Ryanair Logo
05:55 - 06:55
DUB
-
CWL
1h 00mdirect
£33Ryanair
Thu, 2 Jul - Wed, 8 Jul
Ryanair Logo
22:50 - 23:55
CWL
-
DUB
1h 05mdirect
Ryanair Logo
21:50 - 22:50
DUB
-
CWL
1h 00mdirect
£34Ryanair
Mon, 20 Jul - Mon, 27 Jul
Multiple Airlines Logo
22:10 - 21:45
CWL
-
ORK
23h 35m
2 stops
Multiple Airlines Logo
17:55 - 09:05
ORK
-
CWL
15h 10m
1 stop
£143Multiple Airlines
Mon, 20 Jul - Mon, 27 Jul
Multiple Airlines Logo
22:10 - 21:45
CWL
-
ORK
23h 35m
2 stops
Multiple Airlines Logo
17:55 - 09:05
ORK
-
CWL
15h 10m
1 stop
£147Multiple 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 72 hours was to Dublin, at £28 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 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 £61 on average. Morning departures are around 26% 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 £83.

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 £44, 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 Friday, 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 3% increase in price.
Most popular time to fly (4% 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 £21 one-way - £32 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 1527 reviews
7.2Entertainment
7.3Food
8.4Crew
7.7Comfort
7.8Boarding
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Flight delayed 45 minutes almost caused us to miss connection to transatlantic flight.

Vegetarian food options were pretty tasteless. Gob of rice with absolutely no protein, barely any vegetables, and poorly seasoned. Food was the major disappointment of an otherwise good flight experience. However, food is a differentiator on long haul flights.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Flight was delayed no information given really . No food whatsoever on the plane . I think you should be able to put that on the app so people have a chance to buy food bring it with them . They said plane was very busy on way over but there should be enough for both flights as we pay full price for the service. No information or very slow on the app about the delays . Staff were lovely it’s not their fault so company not fare to passengers or staff .

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

My only complaint is that during my 8-hour-long flight, the flight attendants came around with the coffee and tea cart twice instead of the alcoholic beverage cart. I would rather sleep on a plane than rush to the bathroom to take a dump. I asked the flight attendant if I could have a beer instead of coffee or tea. Unfortunately, she said the bar is closed. That tells me that she was too lazy to get me a beer on the plane. I was not happy about that.

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

Friendly flight attendants, decent food if you can eat dairy.

Very good trip. Nice clean aircraft. Helpful and friendly crew.

Enough seat availability for us to move a little and so sit together - but the flight was half an hour late

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

I didn't eat any food so can't comment on that. The prices on the plane are extortionate (as are all prices on planes). Everything else was seemless and a great experience

I need assistance and I could not fault it at all. I suffer anxiety and I was always put at ease by assistance staff, and the banter was good. On board the staff was so very nice and kind and showed empathy. Thank you to them. It was my first time travelling since I lost my husband and was so grateful to them.

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.

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

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.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

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.

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

Information on your arrival and departure airports