CWL - DUB

£17 Find Cheap Flights from Cardiff to Dublin

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 Dublin departing on 8/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Dublin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Dublin, as well as popular online travel agencies
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Cheap Flights from Cardiff to Dublin (CWL-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Dublin 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 Dublin

Thu, 16 Oct - Mon, 20 Oct
Ryanair Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
Ryanair Logo
11:45 - 12:45DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Fri, 17 Oct - Sun, 19 Oct
Ryanair Logo
12:25 - 13:25CWL-DUB
1h 00mdirect
Ryanair Logo
09:35 - 10:35DUB-CWL
1h 00mdirect
£34Ryanair
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Ryanair Logo
14:30 - 15:35CWL-DUB
1h 05mdirect
Ryanair Logo
09:00 - 10:05DUB-CWL
1h 05mdirect
£34Ryanair
Find Deal
Wed, 26 Nov - Sat, 29 Nov
Ryanair Logo
15:55 - 17:00CWL-DUB
1h 05mdirect
Ryanair Logo
18:35 - 19:40DUB-CWL
1h 05mdirect
£36Ryanair
Find Deal
Fri, 7 Nov - Sun, 9 Nov
Ryanair Logo
22:25 - 23:30CWL-DUB
1h 05mdirect
Ryanair Logo
19:50 - 20:55DUB-CWL
1h 05mdirect
£43Ryanair
Find Deal
Mon, 24 Nov - Sat, 29 Nov
Ryanair Logo
23:30 - 00:35CWL-DUB
1h 05mdirect
Ryanair Logo
18:35 - 19:40DUB-CWL
1h 05mdirect
£43Ryanair
Find Deal
Fri, 21 Nov - Sun, 23 Nov
Ryanair Logo
22:25 - 23:30CWL-DUB
1h 05mdirect
Ryanair Logo
19:50 - 20:55DUB-CWL
1h 05mdirect
£45Ryanair
Find Deal
Sat, 4 Oct - Tue, 7 Oct
Ryanair Logo
09:00 - 10:00CWL-DUB
1h 00mdirect
Ryanair Logo
14:55 - 15:55DUB-CWL
1h 00mdirect
£45Ryanair
Find Deal
Mon, 24 Nov - Wed, 26 Nov
Ryanair Logo
23:30 - 00:35CWL-DUB
1h 05mdirect
Ryanair Logo
14:25 - 15:30DUB-CWL
1h 05mdirect
£46Ryanair
Find Deal
Mon, 24 Nov - Fri, 28 Nov
Ryanair Logo
23:30 - 00:35CWL-DUB
1h 05mdirect
Ryanair Logo
20:55 - 22:00DUB-CWL
1h 05mdirect
£47Ryanair
Find Deal

Everything you should know

Video guide: How to find cheap flights to Dublin
Watch video
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When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 51% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 35% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£32
Overall average: £62
Ryanair
Thu 16/10Mon 20/10
CWL - DUB • Direct
Cheapest direct flights
£32
Typical prices: £48-87
Ryanair
Thu 16/10Thu 23/10
CWL - DUB • Direct
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We hope you love your trip to Dublin!
Booking Insights

KAYAK's insights & trends for Cardiff to Dublin flights

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

Find cheap flights to Dublin
Find cheap flights to Dublin

Planning a trip from Cardiff to Dublin? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

Your flight ticket price will generally be cheaper if you fly to Dublin on a Thursday and more expensive on a Wednesday. On your return trip to Cardiff, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Dublin, 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 Dublin is September, where tickets cost £49 (return) on average. On the other hand, the most expensive months are February and July, where the average cost of round-trip tickets is £97 and £89 respectively.

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

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 Dublin, 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 Dublin, you should book around 2 weeks before departure, which saves you about 51% 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 Dublin

Low seasonDecember
Cheapest flight£17
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (5% more expensive on average)
Flight from Cardiff to Dublin

When to book flights from Cardiff to Dublin

Are your dates flexible? Find out the best times to travel from Cardiff to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Cardiff to Dublin

  • What business facilities does Cardiff Airport offer?

    At Cardiff Airport, many business-friendly facilities help you stay productive while waiting for your flight. These include free wifi throughout the terminal, battery charging stations and postal services. If you wish, you may book a meeting room for either a full or half-day. There are two meeting rooms available, which may be used as boardrooms or theatres. Another option is the 51° Executive Lounge, which requires booking.

  • How do I get from Cardiff city centre to the airport?

    There are many ways to access the airport from the city centre, including travel by car, rail or bus. The airport is around 13 miles from the city, on the M4 exit junction 33. The M4 can be accessed from the A4232, A4050 and A4226. Trains depart hourly from Rhoose Cardiff International Airport railway station every day except Sunday, when they leave roughly every 2 hours. A shuttle bus connects the railway to the airport, and the 905 Airport to Rhoose Station Shuttle Bus connects to the Rhoose train station. The other bus service is the 304 Cardiff-Barry-Cardiff Airport-Llantwit Major, departing from the city centre.

  • How do I access the Dublin city centre with public transport?

    You may access the city centre by bus via one of many bus routes; the Dublin Express is generally the quickest. There's either the 782 Dublin Airport to Custom Quay via Heuston Station or 784 From Dublin Airport to Charlottes Way. The Dublin Express operates from Terminal 1 Zone 1 or Terminal 2 Zone 21. Another option is the Aircoach line 700, which departs from Terminal 1 Zone 2 and Terminal 2 Zone 20 and travels to the Dublin city centre. To reach other parts of Dublin, you may take the Dublin Bus from Dublin Airport Bus Park Zone 15, on lines 16 and 41.

  • What accessibility facilities are available at Dublin Airport?

    Dublin Airport provides passengers with many accessibility amenities. Help Points are located throughout the airport, adapted car park spaces, adapted toilets, induction loops, an assistance dog relief room, changing rooms and privacy rooms. You should contact your airline and the airport ahead of time if you require assistance at Dublin Airport. For those with hidden disabilities, Dublin Airport may provide you with a lanyard or wristband that can be shown to any airport staff member for extra assistance.

  • What is the cheapest flight from Cardiff to Dublin?

    In the last 3 days, the lowest price for a flight from Cardiff to Dublin was £23 for a one-way ticket and £44 for a return.

  • Which aircraft models fly most regularly from Cardiff to Dublin?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Cardiff to Dublin flight route.

  • On which days can I fly direct from Cardiff to Dublin?

    You can catch a direct flight from Cardiff to Dublin on on Monday, Tuesday, Thursday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from Cardiff to Dublin, KLM or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Cardiff to Dublin are KLM and Aer Lingus. With an average price for the route of £194 and an overall rating of 7.8, KLM is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of £92 and an overall rating of 7.2.

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

    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 Dublin.

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

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

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

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

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

    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 to Dublin from Cardiff up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Cardiff to Dublin

  • Looking for a cheap flight from Cardiff to Dublin? 25% of our users found flights on this route for £18 or less one-way and £40 or less round-trip.
  • At Dublin Airport (DUB), you can reserve and collect your duty-free items online, ready to collect when you arrive.
  • Want to eat at Cardiff Airport (CWL) before your flight? Grab a coffee and a bite at Costa Coffee, or watch the planes arrive at The Beer House, which has an all-day menu with kids' meals.
  • Travelling with young children? Cardiff Airport provides baby-changing facilities fitted with changing tables. They're located in the departure lounge of the first floor and the arrivals hall.
  • Skip the queue and pre-order your currency online. You can collect your money from the Bureau de Change in Terminals 1 and 2 after arriving in Dublin.
  • At Cardiff Airport, there are many quiet, comfortable chill-out areas where you can relax and charge your devices for free while waiting for your flight.

Prefer to fly direct from Cardiff to Dublin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Cardiff Wales to Dublin.
Find which airlines fly direct from Cardiff Wales Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Cardiff Wales to Dublin

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Wednesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Friday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Direct returns

Dublin to Cardiff Wales

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Wednesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Friday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Reviews of the top 3 airlines flying from Cardiff to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Dublin? 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 1386 reviews
8.4Crew
7.3Food
7.8Boarding
7.7Comfort
7.2Entertainment
Airline reviews

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

10.0 ExcellentCameron, Sept 2025YYJ - YYC
Read more KLM reviews

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

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!

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

The service was great. However the lounge only gets passing grade

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

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

Wonderful experience from start to finish. Extremely nice flight staff and much better food than other airlines I have used. Arrived right on time.

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

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.

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.

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)

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

Information on your arrival and departure airports

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