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Cheap flights from Cardiff to Dublin from £20

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Dublin departing on 20/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Cardiff to Dublin

Cheap return flights

These are some of the best return flight deals from Cardiff to Dublin that have been recently found on momondo from popular airlines, departing in the coming months.
16:10 - 17:10CWL-DUB
1h 00mdirect
08:20 - 09:20DUB-CWL
1h 00mdirect
£36Ryanair
Find Deal
Fri, 21 Mar - Sat, 22 Mar
13:10 - 14:10CWL-DUB
1h 00mdirect
14:55 - 15:55DUB-CWL
1h 00mdirect
£50Ryanair
Find Deal
Mon, 31 Mar - Tue, 1 Apr
16:05 - 21:40CWL-DUB
5h 35m1 stop
08:20 - 09:20DUB-CWL
1h 00mdirect
Tue, 25 Mar - Sat, 29 Mar
16:05 - 21:40CWL-DUB
5h 35m1 stop
14:55 - 15:55DUB-CWL
1h 00mdirect
Tue, 25 Mar - Tue, 1 Apr
17:25 - 08:05CWL-DUB
14h 40m1 stop
11:10 - 09:15DUB-CWL
22h 05m1 stop
£195KLM
Find Deal
Fri, 28 Mar - Mon, 31 Mar
17:25 - 22:05CWL-DUB
4h 40m1 stop
20:45 - 09:15DUB-CWL
12h 30m1 stop
£204KLM
Find Deal
Thu, 27 Mar - Tue, 1 Apr
12:00 - 21:15CWL-DUB
9h 15m2 stops
06:30 - 11:30DUB-CWL
29h 00m2 stops
£417Aer Lingus
Find Deal
Thu, 3 Apr - Mon, 7 Apr
12:00 - 08:15CWL-DUB
20h 15m2 stops
18:45 - 11:30DUB-CWL
40h 45m2 stops
£422Aer Lingus
Find Deal
Sat, 29 Mar - Sun, 30 Mar
09:50 - 22:40CWL-DUB
12h 50m2 stops
06:00 - 16:45DUB-CWL
10h 45m2 stops
£437Air France
Find Deal
Fri, 4 Apr - Tue, 8 Apr
10:25 - 08:05CWL-DUB
45h 40m2 stops
06:00 - 15:45DUB-CWL
33h 45m2 stops
£466Air France
Find Deal
Sat, 22 Mar - Sat, 29 Mar

Ryanair flights from Cardiff to Dublin

Our best Ryanair deals on Cardiff to Dublin flight tickets
Ryanair
21 Mar
CWL16:10Cardiff Wales
1h 00m
DUB17:10Dublin
22 Mar
DUB08:20Dublin
1h 00m
CWL09:20Cardiff Wales
Ryanair
31 Mar
CWL13:10Cardiff Wales
1h 00m
DUB14:10Dublin
1 Apr
DUB14:55Dublin
1h 00m
CWL15:55Cardiff Wales
Ryanair
29 Mar
CWL09:45Cardiff Wales
1h 00m
DUB10:45Dublin
1 Apr
DUB14:55Dublin
1h 00m
CWL15:55Cardiff Wales

KLM flights from Cardiff to Dublin

Our best KLM deals on Cardiff to Dublin flight tickets
KLM
28 Mar
CWL17:25Cardiff Wales
14h 40m
1 stop
DUB08:05Dublin
31 Mar
DUB11:10Dublin
22h 05m
1 stop
CWL09:15Cardiff Wales
KLM
27 Mar
CWL17:25Cardiff Wales
4h 40m
1 stop
DUB22:05Dublin
1 Apr
DUB20:45Dublin
12h 30m
1 stop
CWL09:15Cardiff Wales
KLM
27 Mar
CWL17:25Cardiff Wales
4h 40m
1 stop
DUB22:05Dublin
31 Mar
DUB17:20Dublin
15h 55m
1 stop
CWL09:15Cardiff Wales

See travel insights to Dublin from

How to get the cheapest flight ticket from Cardiff to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

In general, September is the cheapest month to fly from Cardiff to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £52. If you aren’t able to travel to Dublin during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £64.

What is the cheapest day to depart on your flight to Dublin?

On average, the least expensive day to fly to Dublin from Cardiff is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £50. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around £77. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Flying to Dublin from Cardiff in the evening is the least expensive time of day to depart. momondo users have found prices as low as £53 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £86 on average. Flights to Dublin from Cardiff in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Cardiff Wales to Dublin flight route?

Fly from Cardiff Wales to Dublin for the best Cardiff Wales - Dublin flight prices

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

You are more likely to see cheaper flights to Dublin from Cardiff when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around £81 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Cardiff for as low as £46 on momondo.

What cabin class options are available on Cardiff Wales to Dublin flights?

There are 1 cabin classes available to choose from on Cardiff Wales to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Cardiff to Dublin flight prices changed over time?

As of February 2025, prices for Cardiff to Dublin flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Cardiff to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Cardiff to Dublin (CWL to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Dublin

Best price found

£20

Fastest flight time

1h 00m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Dublin

1 airport
The best one-way flight to Dublin from Cardiff in the past 72 hours is £20. The best return flight deal from Cardiff to Dublin found on momondo in the last 72 hours is £36.
The fastest flight from Cardiff to Dublin takes 1h 00m
Direct flights go from Cardiff to Dublin on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airline offering direct flights is Ryanair..
There is 1 airport near Dublin: Dublin (DUB)

  • How far is Cardiff Wales to Dublin by plane?

    Dublin is 182.8 mi away from Cardiff Wales. Typically, this will take 1h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Cardiff Wales Airport to Dublin Airport?

    Prices for flights from Cardiff Wales Airport to Dublin Airport are updated daily.

  • How many operators does momondo search for flights from Cardiff Wales Airport to Dublin Airport?

  • How old do you have to be to fly from Cardiff Wales Airport to Dublin Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Cardiff to Dublin?

  • What is the most popular airline from Cardiff to Dublin?


Best airlines flying from Cardiff to Dublin

Compare and see reviews for airlines that fly from Cardiff to Dublin with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £31Free CancellationRating
6.8
5,069 reviews
Search Ryanair flights
Aer LingusPriceFrom £70Free CancellationRating
7.1
1,070 reviews
Search Aer Lingus flights
KLMPriceFrom £163Free CancellationRating
7.8
1,333 reviews
Search KLM flights
  • Aer Lingus Flights From Cardiff to Dublin

    The lowest priced Aer Lingus flight from Cardiff to Dublin from the last 72 hours was £88. Generally, Aer Lingus has 2 flights on this route every week with an average price of £179. Aer Lingus is rated 7.1/10 by our users.

  • Ryanair Flights From Cardiff to Dublin

    Another popular option for Cardiff to Dublin flights is Ryanair (6.8/10, 5,069 ratings). Ryanair flies from Cardiff to Dublin around 3 times per week, with deals starting from £39 round-trip and rising to an average price of around £83.


Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Swords
Kilkenny
Dundalk
Athlone
Cavan
Bray
Drogheda
Wicklow
Carlingford
Malahide
Gorey
Mullingar
Arklow
Naas
Kildare
Portmarnock
Enniscorthy
Tullamore
Maynooth
Castleknock

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Dublin?

Finding the right flight to Dublin from Cardiff is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

Can I find flights from Cardiff to Dublin with flexible booking policies on momondo?

Flights from Cardiff to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Cardiff to Dublin?

Once you have performed a search for Cardiff to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Cardiff to Dublin right now. Can momondo alert me if prices change?

Price alerts on flights to Dublin from Cardiff are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


An easier way to manage your Dublin trip

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