CWL - DUB

£20 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 1/9. 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

Tue, 26 Aug - Thu, 28 Aug
Ryanair Logo
16:20 - 17:20CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£31Ryanair
Find Deal
Mon, 18 Aug - Thu, 21 Aug
Ryanair Logo
13:10 - 14:10CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Thu, 9 Oct - Fri, 10 Oct
 Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
 Logo
20:45 - 17:05DUB-CWL
20h 20m1 stop
Thu, 7 Aug - Thu, 14 Aug
 Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
 Logo
20:45 - 09:15DUB-CWL
12h 30m1 stop
Fri, 7 Nov - Sun, 9 Nov
KLM Logo
17:25 - 08:05CWL-DUB
14h 40m1 stop
KLM Logo
05:55 - 09:50DUB-CWL
3h 55m1 stop
£172KLM
Find Deal
Tue, 12 Aug - Thu, 14 Aug
KLM Logo
17:15 - 08:20CWL-DUB
15h 05m1 stop
KLM Logo
20:45 - 09:15DUB-CWL
12h 30m1 stop
£211KLM
Find Deal
Sat, 11 Oct - Mon, 13 Oct
Aer Lingus Logo
12:00 - 18:30CWL-DUB
6h 30m2 stops
Aer Lingus Logo
10:10 - 11:30DUB-CWL
25h 20m2 stops
£418Aer Lingus
Find Deal
Sat, 11 Oct - Mon, 13 Oct
Aer Lingus Logo
12:00 - 18:30CWL-DUB
6h 30m2 stops
Aer Lingus Logo
13:45 - 11:30DUB-CWL
21h 45m2 stops
£423Aer Lingus
Find Deal
Thu, 17 Jul - Sun, 20 Jul
Air France Logo
17:15 - 22:40CWL-DUB
29h 25m2 stops
Air France Logo
06:00 - 16:45DUB-CWL
34h 45m2 stops
£460Air France
Find Deal
Thu, 31 Jul - Sun, 3 Aug
Air France Logo
09:50 - 22:40CWL-DUB
12h 50m2 stops
Air France Logo
06:00 - 16:50DUB-CWL
10h 50m2 stops
£481Air France
Find Deal
Useful Info

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 Wednesday. On your return trip to Cardiff, you should consider flying back on a Sunday, 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 £47 (return) on average. On the other hand, the most expensive months are February and July, where the average cost of round-trip tickets is £101 and £80 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 seasonDecember
High seasonAugust
Cheapest flight£20
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 7% 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 £28 for a one-way ticket and £43 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 £183 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 £102 and an overall rating of 7.1.

  • 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 £38 or less one-way and £49 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

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

Thursday

Ryanair

Ryanair

Friday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Reviews of the 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 1365 reviews
7.1Entertainment
7.7Comfort
8.4Crew
7.2Food
7.8Boarding
Airline reviews

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

10.0 ExcellentMostafa, May 2025YYC - AMS
Read more KLM reviews

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

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

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

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

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

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. We were told we'd be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

It was fine. We were delayed leaving but a situation of too many planes, not the airlines fault.

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

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)

I bought my flight, insurance etc early and paid over £200. But had i waited until closer the time the price was much cheaper, i appreciate that it could've been more expensive but it wasn't. A better discount for booking early would be better than your current one

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.

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

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