CWL - DUB

£23 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 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.
1 adult

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 Flight Deals 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.

Recent return flight deals from Cardiff to Dublin

KAYAK's recommended return flight deals from the most popular airlines that fly from Cardiff to Dublin.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Ryanair Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£29Ryanair
Find Deal
Thu, 22 May - Thu, 29 May
Ryanair Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
Ryanair Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Thu, 26 Jun - Sat, 28 Jun
Ryanair Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
Ryanair Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Thu, 5 Jun - Sat, 14 Jun
Ryanair Logo
09:00 - 10:00CWL-DUB
1h 00mdirect
Ryanair Logo
05:45 - 06:45DUB-CWL
1h 00mdirect
£33Ryanair
Find Deal
Sat, 14 Jun - Sat, 28 Jun
 Logo
12:35 - 13:45CWL-DUB
1h 10mdirect
 Logo
11:45 - 12:45DUB-CWL
1h 00mdirect
Sat, 24 May - Mon, 26 May
 Logo
09:10 - 10:25CWL-DUB
1h 15mdirect
 Logo
11:45 - 12:45DUB-CWL
1h 00mdirect
Sat, 24 May - Mon, 26 May
KLM Logo
17:15 - 22:25CWL-DUB
5h 10m1 stop
KLM Logo
05:55 - 16:45DUB-CWL
10h 50m1 stop
£178KLM
Find Deal
Thu, 9 Oct - Sun, 12 Oct
KLM Logo
17:35 - 08:20CWL-DUB
14h 45m1 stop
KLM Logo
20:45 - 09:15DUB-CWL
12h 30m1 stop
£189KLM
Find Deal
Sat, 14 Jun - Tue, 17 Jun
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
Aer Lingus Logo
12:00 - 09:15CWL-DUB
21h 15m2 stops
Aer Lingus Logo
16:50 - 11:30DUB-CWL
18h 40m2 stops
£407Aer Lingus
Find Deal
Sat, 14 Jun - Tue, 17 Jun

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 Saturday and more expensive on a Friday. On your return trip to Cardiff, you should consider flying back on a Friday, 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 £104 and £87 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. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know - Cheap tickets from Cardiff to Dublin

Low season

January

High season

August

Cheapest flight

£23
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 11% lower 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 £31 for a one-way ticket and £39 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.

  • Which airline alliances offer flights from Cardiff to Dublin?

    oneworld is the only airline alliance operating flights between Cardiff and Dublin.

  • 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 £210 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 £107 and an overall rating of 7.0.

  • 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.

See more FAQs

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 £52 or less one-way and £60 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.
See more tips

Prefer to fly direct from Cardiff 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

Aer Lingus, Ryanair

Aer Lingus, Ryanair

Tuesday

Ryanair

Ryanair

Thursday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

Friday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

Saturday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

Sunday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

See more direct flights

Direct returns

Dublin to Cardiff Wales

Monday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

Tuesday

Ryanair

Ryanair

Thursday

Aer Lingus, Ryanair

Aer Lingus, Ryanair

Friday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

Saturday

Aer Lingus, Ryanair

Aer Lingus, Ryanair

Sunday

Aer Lingus, Qatar Airways, Ryanair

Aer Lingus, Qatar Airways, +1 more

See more direct flights
See more direct flights

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

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.

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.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

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

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

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.

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

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

On time was excellent, not serving any water and deliberate seatings apart is deplorable.

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.

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

Information on your arrival and departure airports

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