Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Cardiff to Dublin from £21

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 1/9. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Cardiff to Dublin

Cheap return flights

Ryanair Logo
16:20 - 17:20CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Tue, 26 Aug - Thu, 28 Aug
Ryanair Logo
13:10 - 14:10CWL-DUB
1h 00mdirect
Ryanair Logo
06:25 - 07:25DUB-CWL
1h 00mdirect
£32Ryanair
Find Deal
Mon, 18 Aug - Thu, 21 Aug
 Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
 Logo
20:45 - 17:05DUB-CWL
20h 20m1 stop
Thu, 9 Oct - Fri, 10 Oct
 Logo
07:55 - 08:55CWL-DUB
1h 00mdirect
 Logo
20:45 - 09:15DUB-CWL
12h 30m1 stop
Thu, 7 Aug - Thu, 14 Aug
KLM Logo
17:25 - 08:05CWL-DUB
14h 40m1 stop
KLM Logo
05:55 - 09:50DUB-CWL
3h 55m1 stop
£173KLM
Find Deal
Fri, 7 Nov - Sun, 9 Nov
KLM Logo
17:15 - 08:20CWL-DUB
15h 05m1 stop
KLM Logo
20:45 - 09:15DUB-CWL
12h 30m1 stop
£213KLM
Find Deal
Tue, 12 Aug - Thu, 14 Aug
Aer Lingus Logo
12:00 - 18:30CWL-DUB
6h 30m2 stops
Aer Lingus Logo
10:10 - 11:30DUB-CWL
25h 20m2 stops
£421Aer 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
£425Aer Lingus
Find Deal
Sat, 11 Oct - Mon, 13 Oct
Air France Logo
17:15 - 22:40CWL-DUB
29h 25m2 stops
Air France Logo
06:00 - 16:45DUB-CWL
34h 45m2 stops
£463Air France
Find Deal
Thu, 17 Jul - Sun, 20 Jul
Air France Logo
09:50 - 22:40CWL-DUB
12h 50m2 stops
Air France Logo
06:00 - 16:50DUB-CWL
10h 50m2 stops
£484Air France
Find Deal
Thu, 31 Jul - Sun, 3 Aug

Ryanair flights from Cardiff to Dublin

Our best Ryanair deals on Cardiff to Dublin flight tickets
Ryanair
26 Aug
CWL16:20Cardiff Wales
1h 00m
DUB17:20Dublin
28 Aug
DUB06:25Dublin
1h 00m
CWL07:25Cardiff Wales
Ryanair
18 Aug
CWL13:10Cardiff Wales
1h 00m
DUB14:10Dublin
21 Aug
DUB06:25Dublin
1h 00m
CWL07:25Cardiff Wales
Ryanair
16 Aug
CWL09:00Cardiff Wales
1h 00m
DUB10:00Dublin
18 Aug
DUB11:45Dublin
1h 00m
CWL12:45Cardiff Wales

KLM flights from Cardiff to Dublin

Our best KLM deals on Cardiff to Dublin flight tickets
KLM
7 Nov
CWL17:25Cardiff Wales
14h 40m
1 stop
DUB08:05Dublin
9 Nov
DUB05:55Dublin
3h 55m
1 stop
CWL09:50Cardiff Wales
KLM
12 Aug
CWL17:15Cardiff Wales
15h 05m
1 stop
DUB08:20Dublin
14 Aug
DUB20:45Dublin
12h 30m
1 stop
CWL09:15Cardiff Wales
KLM
3 Jul
CWL17:15Cardiff Wales
15h 05m
1 stop
DUB08:20Dublin
7 Jul
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 £48. 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 £62.

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 Saturday. momondo users have found tickets for Saturday departures for as low as £55. 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 Wednesday because tickets tend to average around £97. 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 £49 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £81 on average. Flights to Dublin from Cardiff at midday 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 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around £72 when searching weeks before you fly. 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 June 2025, prices for Cardiff to Dublin flights are approximately 23% 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

£21

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 £21. The best return flight deal from Cardiff to Dublin found on momondo in the last 72 hours is £32.
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 £29Free CancellationRating
6.8
5,144 reviews
Search Ryanair flights
Aer LingusPriceFrom £47Free CancellationRating
7.1
1,131 reviews
Search Aer Lingus flights
KLMPriceFrom £152Free CancellationRating
7.8
1,365 reviews
Search KLM flights
  • Ryanair Flights From Cardiff to Dublin

    The lowest priced Ryanair flight from Cardiff to Dublin from the last 72 hours was £40. Generally, Ryanair has 1 flight on this route every week with an average price of £91. Ryanair is rated 6.8/10 by our users.


Travelling to a place near Dublin?

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

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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 1/7
Tue 8/7

Find better results for your trip to Ireland