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Cheap flights from Cardiff (CWL) to Dublin (DUB)

CWL — DUB
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheapflights Tip: The best prices from Cardiff Wales to Dublin are usually found in September or November, booked 33 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Find flight deals from Cardiff to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Dublin (DUB). 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

September

Average price

$79

Good round-trip deal

$173 or less

Good one-way deal

$49 or less
Provider with most accurate pricing for Cardiff Wales-Dublin flight deals.
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Provider most trusted by Cheapflights users for Cardiff Wales-Dublin flights.
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Highest demand for flights based on searches. 14% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Cardiff Wales to Dublin.
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Price to beat on a one-way flight from Cardiff Wales to Dublin.
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  • Most accurate provider: When it comes to deals on Cardiff-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cardiff-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cardiff-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cardiff-Dublin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cardiff-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
Estimated round-trip 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 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 round-trip flight from Cardiff to Dublin. Price data was last updated on January 23, 2026.

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from Cardiff to Dublin. 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 Cardiff to Dublin?

Currently, February is the cheapest month in which you can book a flight from Cardiff to Dublin (average of $34). Flying from Cardiff to Dublin in September is currently the most expensive (average of $43). 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 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 January 27, 2026.

A simple way to save on the total cost of your ticket is to fly from Cardiff to Dublin at noon. If you’re flexible enough to do this you can expect to save up to 56% on your trip compared to booking a flight in the morning.

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 January 27, 2026.
Peruse reviews from past customers who have flown with Ryanair from Cardiff to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.9
Okay
5,253 reviews

Overall

6.9

Comfort

6.5

Boarding

6.7

Entertainment

5.6

Crew

7.5

Food

6.0

Reviews

1 / 20
2.0
Mediocre

brendan,Sep 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight
Ryanair
6.9
Okay
5,253 reviews
Ryanair
6.9
Okay
5,253 reviews

Overall

6.9

Comfort

6.5

Boarding

6.7

Entertainment

5.6

Crew

7.5

Food

6.0

Reviews

1 / 20
2.0
Mediocre

brendan,Sep 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight

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?

    The Cardiff Wales to Dublin flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Ryanair, at $37, was found to be the cheapest airline from Cardiff to Dublin.. Ryanair is priced at 59% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    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.

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

    Currently, February is the cheapest month in which you can book a flight from Cardiff to Dublin (average of $34). Flying from Cardiff to Dublin in September is currently the most expensive (average of $43). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Leixlip

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Alternative routes for Cardiff to Dublin

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Top airline flying from Cardiff to Dublin

Discover the top airline that operate flights from Cardiff to Dublin. 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 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest$37Average$61FlexibilityNo cancel feeOn-timeN/A

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