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Cheap flights from Dublin to Cardiff from £20

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — CWL
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Dublin to Cardiff Wales are usually found in June or October, booked 33 days in advance, depart on a Friday or Wednesday and return on a Saturday

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 June 2025.

Round-trip from

£32

One-way from

£20

Popular in

April

Cheapest in

June

Average price

£60

Good round-trip deal

£50 or less

Good one-way deal

£21 or less
Ryanair
  • Ryanair
  • 8/7-27/7
  • Nonstop
  • 2h 00m total
  • Dublin to Cardiff
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Ryanair
  • Ryanair
  • 18/8
  • Nonstop
  • 1h 00m total
  • Dublin to Cardiff
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in June 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 June 2025.

Thu 24/706:25DUB - CWL
Nonstop1h 00mRyanair
Sun 27/711:00CWL - DUB
Nonstop1h 00mRyanair
Deal found 12/6£50
Sun 6/709:35DUB - CWL
Nonstop1h 00mMultiple Airlines
Tue 8/717:05CWL - DUB
1 stop7h 30mMultiple Airlines
Deal found 12/6£136
Fri 15/820:45DUB - CWL
1 stop12h 30mKLM
Mon 25/817:15CWL - DUB
1 stop15h 05mKLM
Deal found 11/6£164
Fri 26/906:00DUB - CWL
2 stops10h 45mAir France
Sun 28/917:15CWL - DUB
2 stops39h 00mAir France
Deal found 11/6£305
Thu 19/607:40DUB - CWL
2 stops24h 40mAer Lingus
Mon 23/612:00CWL - DUB
2 stops29h 15mAer Lingus
Deal found 11/6£501

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 June 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

Thu 4/9

06:25-07:25

Nonstop1h 00m

Cardiff Wales

Sun 7/9

11:00-12:00

Nonstop1h 00m

£39

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Sun 6/7

09:35-10:35

Nonstop1h 00m

Cardiff Wales

Tue 8/7

17:05-00:35

1 stop7h 30m

£136

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Fri 15/8

20:45-09:15

1 stop12h 30m

Cardiff Wales

Mon 25/8

17:15-08:20

1 stop15h 05m

£164

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Fri 26/9

06:00-16:45

2 stops10h 45m

Cardiff Wales

Sun 28/9

17:15-08:15

2 stops39h 00m

£305

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Mon 18/8

11:45-12:45

Nonstop1h 00m

£20

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Tue 12/8

20:45-09:15

1 stop12h 30m

£73

DublinCardiff

DUB - CWL

DUBCWL

Dublin

Thu 14/8

18:20-08:20

2 stops14h 00m

£115

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 9 June 2025.

Booking 33 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 June 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 17% on flights from Dublin to Cardiff by exploring options for tickets in the afternoon.

Rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

Temperature in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 June 2025.
Read through reviews of airlines operating flights from Dublin to Cardiff, such as KLM, Air France and Ryanair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Ryanair
6.9
Okay
5,121 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Entertainment

7.1

Boarding

7.8

Overall

7.8

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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, 73 users have taken a look at flights from Dublin to Cardiff Wales.

  • What are the cheapest airlines flying from Dublin to Cardiff round-trip?

    Cheapflights users have booked flights from Dublin to Cardiff round-trip from £32. Other airlines that can offer you cheap pricing are KLM, from £164, and Air France, from £305. You may be able to fly from Dublin to Cardiff for 67% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Dublin to Cardiff?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Dublin to Cardiff on time: Qatar Airways (100%), Ryanair (77%), Aer Lingus (60%).

  • What are the cheapest flights from Dublin to Cardiff?

    Looking at all options, your cheapest flight can be booked for £14. While the most popular route (Dublin - Cardiff Wales) can be booked for £32 on average our data indicates £45 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 Dublin?

Book flights to Dublin 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 June 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£41Average£72FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights

Fly with Cheapflights

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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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