$23 Cheap Flights from Cardiff (CWL) to Dublin (DUB)

View $23 flight on Sat, Mar 21, 2026Opens in a new window

Popular airlines from Cardiff International Airport (CWL) to Dublin Airport (DUB)

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Cheap Flights from Cardiff to Dublin (CWL-DUB)

Prices were available within the past 7 days and start at $23 for one-way flights and $43 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Fri, Apr 10 - Mon, Apr 13
CWL
Cardiff
DUB
Dublin
$43 Roundtrip, just found
$43
Roundtrip
just found
Select Ryanair flight, departing Fri, Apr 10 from Cardiff to Dublin, returning Mon, Apr 13, priced at $43 just found
Ryanair
Tue, Mar 31 - Tue, Apr 7
CWL
Cardiff
DUB
Dublin
$43 Roundtrip, found 5 days ago
$43
Roundtrip
found 5 days ago
Select Ryanair flight, departing Tue, Mar 31 from Cardiff to Dublin, returning Tue, Apr 7, priced at $43 found 5 days ago
Ryanair
Tue, May 5 - Tue, May 12
CWL
Cardiff
DUB
Dublin
$44 Roundtrip, found 3 days ago
$44
Roundtrip
found 3 days ago
Select Ryanair flight, departing Tue, May 5 from Cardiff to Dublin, returning Tue, May 12, priced at $44 found 3 days ago
Ryanair
Thu, May 7 - Sat, May 9
CWL
Cardiff
DUB
Dublin
$46 Roundtrip, found 3 days ago
$46
Roundtrip
found 3 days ago
Select Ryanair flight, departing Thu, May 7 from Cardiff to Dublin, returning Sat, May 9, priced at $46 found 3 days ago
Ryanair
Mon, May 11 - Fri, May 22
CWL
Cardiff
DUB
Dublin
$49 Roundtrip, found 3 days ago
$49
Roundtrip
found 3 days ago
Select Ryanair flight, departing Mon, May 11 from Cardiff to Dublin, returning Fri, May 22, priced at $49 found 3 days ago
Ryanair
Mon, Jun 8 - Fri, Jun 19
CWL
Cardiff
DUB
Dublin
$53 Roundtrip, found 3 days ago
$53
Roundtrip
found 3 days ago
Select Ryanair flight, departing Mon, Jun 8 from Cardiff to Dublin, returning Fri, Jun 19, priced at $53 found 3 days ago
Ryanair
Mon, Mar 9 - Fri, Mar 20
CWL
Cardiff
DUB
Dublin
$55 Roundtrip, found 3 days ago
$55
Roundtrip
found 3 days ago
Select Ryanair flight, departing Mon, Mar 9 from Cardiff to Dublin, returning Fri, Mar 20, priced at $55 found 3 days ago
Ryanair
Sun, Mar 29 - Mon, Mar 30
CWL
Cardiff
DUB
Dublin
$69 Roundtrip, found 4 days ago
$69
Roundtrip
found 4 days ago
Select Ryanair flight, departing Sun, Mar 29 from Cardiff to Dublin, returning Mon, Mar 30, priced at $69 found 4 days ago
KLM
Fri, Dec 4 - Mon, Dec 7
CWL
Cardiff
DUB
Dublin
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select KLM flight, departing Fri, Dec 4 from Cardiff to Dublin, returning Mon, Dec 7, priced at $307 found 4 days ago
Air France
Tue, May 5 - Tue, May 12
CWL
Cardiff
DUB
Dublin
$348 Roundtrip, found 3 days ago
$348
Roundtrip
found 3 days ago
Select Air France flight, departing Tue, May 5 from Cardiff to Dublin, returning Tue, May 12, priced at $348 found 3 days ago

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Frequently asked questions

How much does a flight from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) cost?
You can find cheap one-way flights from $23 and cheap return flights from $43 Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) with Expedia. One-way flights generally range between $53 and $1208, and roundtrip flights usually range from $459 to $2192. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
The cheapest month to fly from CWL to DUB is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
There are 2 airlines offering direct flights from CWL to DUB:

  • Ryanair operates around 7 direct flights from CWL to DUB every week
  • Aer Lingus operates around 7 direct flights from CWL to DUB every week

What is the cheapest airline that flies from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
Ryanair is one of the cheapest airlines offering connecting flights from Cardiff (CWL) to Dublin (DUB), starting from around $202. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
To find a cheap flight from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
The best airline to fly with from Cardiff (CWL) to Dublin (DUB) will differ from traveler to traveler. If you like to fly early, Ryanair offers early morning flights. If price is the most important factor, Ryanair typically offers the lowest fares. KLM offers the most daily flights from Cardiff to Dublin, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
You can find approximately 1 nonstop flights per day from Cardiff Intl. (CWL) to (DUB). For more options, look at flights that include layovers.
What is the earliest flight from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from CWL to DUB. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
A nonstop flight from CWL to DUB typically takes around 1 hour, covering approximately 186 miles. Connecting flights on this route usually add 20 hours 50 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
Business class seats are offered on the CWL to DUB route with KLM and Air France.
How do I earn miles on a Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) flight with Expedia?
It's easy to earn miles on a Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) at the last minute?
Typically, booking a last minute flight from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) flight and hotel package?
Securing a Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) Dublin Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cardiff (CWL-Cardiff Intl.) to Dublin (DUB)?
If you booked your Cardiff (CWL-Cardiff Intl.) to Dublin (DUB) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cardiff Intl.
Destination airport
Dublin
Airlines serving
Air France, KLM, Ryanair
Roundtrip price
$42
Distance
185 mi
Average flight time
1 hour 5 mins

Book with confidence

Cardiff to Dublin Flights

The cheapest times to fly from Cardiff to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cardiff to Dublin are during the month of April. You can find some of the cheapest flights from Cardiff to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cardiff to Dublin

Sunday is one of the best days to book for cheap flights from Cardiff to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cardiff to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cardiff to Dublin in 2026. You can also book with separate airlines for your outbound and return journeys, from $23 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cardiff to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cardiff to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Cardiff to Dublin Flights

*Flight schedules are subject to change.

*Available to One Key members.