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Cheap flights from Dublin to Cardiff from £15

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CWL
18 Aug — 25 Aug1
1 adult

Cheapflights Tip: The best prices from Dublin to Cardiff Wales are usually found in September or June, booked 22 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Dublin to Cardiff

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Cardiff (CWL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 August 2025.

Round-trip from

£32

One-way from

£15

Popular in

April

Cheapest in

September

Average price

£66

Good round-trip deal

£39 or less

Good one-way deal

£20 or less
Ryanair
  • Ryanair
  • 16/9-18/9
  • Nonstop
  • 2h 00m total
  • Dublin to Cardiff
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Ryanair
  • Ryanair
  • 16/9
  • Nonstop
  • 1h 00m total
  • Dublin to Cardiff
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Dublin to Cardiff Wales.
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Price to beat on a one-way flight from Dublin to Cardiff Wales.
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Find flight deals from Dublin to Cardiff

Cheapest flights from Dublin to Cardiff
Explore the most affordable flight options available from Dublin to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2025.

Thu 11/906:25DUB - CWL
Nonstop1h 00mRyanair
Tue 23/916:20CWL - DUB
Nonstop1h 00mRyanair
Deal found 13/8£32
Thu 11/906:25DUB - CWL
Nonstop1h 00mRyanair
Sat 13/909:00CWL - DUB
Nonstop1h 00mRyanair
Deal found 11/8£33
Tue 21/1014:55DUB - CWL
Nonstop1h 00mRyanair
Wed 5/1115:55CWL - DUB
Nonstop1h 05mRyanair
Deal found 13/8£47
Fri 19/911:00DUB - CWL
Nonstop1h 00mRyanair
Sun 21/911:00CWL - DUB
Nonstop1h 00mRyanair
Deal found 11/8£51
Fri 26/911:00DUB - CWL
Nonstop1h 00mRyanair
Tue 30/916:20CWL - DUB
Nonstop1h 00mRyanair
Deal found 12/8£60
Fri 26/911:00DUB - CWL
Nonstop1h 00mRyanair
Mon 29/913:10CWL - DUB
Nonstop1h 00mRyanair
Deal found 12/8£65
Mon 22/1222:00DUB - CWL
Nonstop1h 05mRyanair
Mon 29/1223:30CWL - DUB
Nonstop1h 05mRyanair
Deal found 11/8£75
Sat 23/806:30DUB - CWL
Nonstop1h 00mRyanair
Mon 25/813:10CWL - DUB
Nonstop1h 00mRyanair
Deal found 12/8£79
Sun 28/1219:50DUB - CWL
Nonstop1h 05mRyanair
Mon 29/1223:30CWL - DUB
Nonstop1h 05mRyanair
Deal found 11/8£88
Mon 22/1222:00DUB - CWL
Nonstop1h 05mRyanair
Fri 2/122:25CWL - DUB
Nonstop1h 05mRyanair
Deal found 11/8£89
Mon 20/1011:45DUB - CWL
Nonstop1h 00mRyanair
Thu 6/1110:30CWL - DUB
Nonstop1h 05mRyanair
Deal found 11/8£95
Mon 22/1222:00DUB - CWL
Nonstop1h 05mRyanair
Sun 28/1221:20CWL - DUB
Nonstop1h 05mRyanair
Deal found 11/8£97

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 August 2025.
Use the filters below to find and compare flights from Dublin to Cardiff that are best for you.

Fly from

Dublin

Fly to

Cardiff

Route

Depart

Return

Price

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Tue 16/9

14:55-15:55

Nonstop1h 00m

Cardiff Wales

Thu 18/9

07:55-08:55

Nonstop1h 00m

£32

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Sat 27/9

06:30-07:30

Nonstop1h 00m

Cardiff Wales

Sat 4/10

09:00-10:00

Nonstop1h 00m

£32

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Thu 11/9

06:25-07:25

Nonstop1h 00m

Cardiff Wales

Tue 23/9

16:20-17:20

Nonstop1h 00m

£32

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Thu 11/9

06:25-07:25

Nonstop1h 00m

Cardiff Wales

Sat 13/9

09:00-10:00

Nonstop1h 00m

£33

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Fri 19/9

11:00-12:00

Nonstop1h 00m

Cardiff Wales

Sun 21/9

11:00-12:00

Nonstop1h 00m

£51

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Fri 26/9

11:00-12:00

Nonstop1h 00m

Cardiff Wales

Tue 30/9

16:20-17:20

Nonstop1h 00m

£60

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Fri 26/9

11:00-12:00

Nonstop1h 00m

Cardiff Wales

Mon 29/9

13:10-14:10

Nonstop1h 00m

£65

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Tue 23/12

19:45-20:50

Nonstop1h 05m

Cardiff Wales

Mon 29/12

23:30-00:35

Nonstop1h 05m

£75

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Mon 22/12

22:00-23:05

Nonstop1h 05m

Cardiff Wales

Mon 29/12

23:30-00:35

Nonstop1h 05m

£75

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Wed 24/12

07:00-08:05

Nonstop1h 05m

Cardiff Wales

Mon 29/12

23:30-00:35

Nonstop1h 05m

£75

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 19 results
1
2

Best time to book a flight from Dublin to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Dublin with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Dublin to Cardiff. Price data was last updated on 8 August 2025.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to Cardiff. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Dublin to Cardiff?

Currently, July is the cheapest month in which you can book a flight from Dublin to Cardiff (average of £169). Flying from Dublin to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DUB to CWL?

Find hourly flight availability from Dublin to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 August 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Dublin to Cardiff by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Dublin to Cardiff?

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 13 August 2025.
Get a feel of what it's like to fly with Ryanair from Dublin to Cardiff by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.8
Okay
5,153 reviews
Check prices

Comfort

6.5

Entertainment

5.6

Food

6.0

Overall

6.8

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
Ryanair
6.8
Okay
5,153 reviews
Ryanair
6.8
Okay
5,153 reviews
Check prices

Comfort

6.5

Entertainment

5.6

Food

6.0

Overall

6.8

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Dublin to Cardiff flight route?

    Within the past month, 83 users have taken a look at flights from Dublin to Cardiff Wales.

  • What is the cheapest airline to fly from Dublin to Cardiff round-trip?

    Cheapflights users have booked flights from Dublin to Cardiff round-trip from £32. You may be able to fly from Dublin to Cardiff for 65% less than the average price by searching for this airline.

  • What are the cheapest flights from Dublin to Cardiff?

    Looking at all options, your cheapest flight can be booked for £15. While the most popular route (Dublin - Cardiff Wales) can be booked for £32 on average our data indicates £61 when flying from Dublin to Cardiff.

  • Can I find deals for flights from Dublin to Cardiff that include hotel bookings?

    Yes. In addition to deals on Dublin to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Cardiff.

  • Can I find deals for business class flights from Dublin to Cardiff?

    Yes. Cheapflights offers flight deals from Dublin to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from Dublin to Cardiff (average of £169). Flying from Dublin to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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Top airline flying from Dublin to Cardiff

Discover the top airline that operate flights from Dublin to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£32Average£68FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Cardiff?

When you search for this flight from Dublin to Cardiff, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Cardiff?

Cheapflights helps you find that perfect flight to Cardiff from Dublin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dublin to Cardiff with no change fees?

Yes! Cheapflights helps users easily find flights from Dublin to Cardiff with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to Cardiff become cheaper?

Not ready to book yet? You can track prices for flights from Dublin to Cardiff on Cheapflights with our Price Alert feature and get notified when better prices are available.

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