Question 1

How popular is this Cardiff to Dublin flight route?

Accepted Answer

Within the past month, 1,736 users have taken a look at flights from Cardiff Wales to Dublin.

Question 2

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

Accepted Answer

Cheapflights users have booked flights from Cardiff to Dublin round-trip from £32. This flight start at 55% lower than the current average price 3 months from now.

Question 3

What are the cheapest airlines to fly from Cardiff to Dublin one-way?

Accepted Answer

To fly one-way, consider booking your trip with Ryanair, which is currently one of the cheapest options available, starting at £17. KLM flights start at £116 while deals on Aer Lingus start at £252 one-way.

Question 4

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from Cardiff to Dublin, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 5

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Cardiff to Dublin (average of £71). Flying from Cardiff to Dublin in August is currently the most expensive (average of £93). 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.

Question 6

What is the cheapest day to fly from Cardiff to Dublin?

Accepted Answer

Travellers seeking maximum savings on their Cardiff to Dublin flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Dublin, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 9

What are the cheapest flights from Cardiff to Dublin?

Accepted Answer

On average you can expect to pay £70 for a flight from Cardiff to Dublin. The cheapest flight overall is £17 while the most popular route, (Cardiff Wales - Dublin) is currently priced at £32.

Question 10

What are the most reliable airlines from Cardiff to Dublin?

Accepted Answer

Consider Qatar Airways (100%), Aer Lingus (88%) or Ryanair (79%) when booking your flight. These represent the most reliable airlines when flying from Cardiff to Dublin.

Question 11

What are the most popular airlines that fly from Cardiff to Dublin?

Accepted Answer

Consider Aer Lingus, Ryanair or KLM when booking your flight. These represent the most popular airlines when flying from Cardiff to Dublin.

Question 12

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

Accepted Answer

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 13

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

Accepted Answer

To save on the cost of your flight from Cardiff to Dublin, book at least 28 days before your planned departure. Booking around this time can save you about 78% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £49 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £108.

Question 14

What is the cheapest month to fly from Cardiff to Dublin?

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to Dublin from Cardiff. Users have commonly found prices around £72 for the month, but tickets can be as low as £29. Due to multiple factors, prepare for potentially higher prices in February.

Question 15

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

Accepted Answer

When flying from Cardiff to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 40% versus a flight at midday.

Question 16

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

Accepted Answer

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

Question 17

How can I find direct flights from Cardiff to Dublin?

Accepted Answer

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

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dublin from Cardiff today with Cheapflights!

Question 20

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

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Cardiff to Dublin for you. Better yet — we are completely free to use.

Question 21

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

Accepted Answer

Yes, we can. To see specific flights from Cardiff to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 22

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

Accepted Answer

Yes, Cheapflights offers price alerts on Cardiff to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	£32
One-way from	£17
Popular in	February
Cheapest in	September
Average price	£79
Good round-trip deal	£50 or less
Good one-way deal	£35 or less

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£29	Average£66	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Aer Lingus	Cheapest£47	Average£103	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
KLM	Cheapest£150	Average£184	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Cheap flights from Cardiff to Dublin from £17

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Cardiff Wales to Dublin are usually found in September or January, booked 27 days in advance, depart on a Saturday or Thursday and return on a Friday

Cheap flight deals from Cardiff to Dublin

Round-trip from

One-way from

Popular in

Cheapest in

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Good round-trip deal

Good one-way deal

Find flight deals from Cardiff to Dublin

Cheapest flights from Cardiff to DublinExplore the most affordable flight options available from Cardiff to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.

Explore the most affordable flight options available from Cardiff to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.

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Use the filters below to find and compare flights from Cardiff to Dublin that are best for you.

Best time to book a flight from Cardiff to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Cardiff with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Cardiff to Dublin. Price data was last updated on 27 June 2025.

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

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

Find hourly flight availability from Cardiff to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 July 2025.

What is the cheapest day to fly from Cardiff to Dublin?

Use this chart to determine the cheapest time to fly return from Cardiff to Dublin. Price data was last updated on 29 June 2025.

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

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 2 July 2025.

Get a feel of what it's like to fly with KLM, Air France, andAer Lingus from Cardiff to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Dublin. 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 Cardiff to Dublin flight route?

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

What are the cheapest airlines to fly from Cardiff to Dublin one-way?

What are the most reliable airlines from Cardiff to Dublin?

What are the cheapest flights from Cardiff to Dublin?

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

How can I find direct flights from Cardiff to Dublin?

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

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

Travelling to a place near Cardiff?

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Fly from Cardiff to Dublin on these airlines

Choose from the following airlines for your flight from Cardiff to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 2 July 2025.

Top 3 airlines flying from Cardiff to Dublin

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

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

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

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

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Cheapest flights from Cardiff to Dublin
Explore the most affordable flight options available from Cardiff to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.