Cheap flights from Cardiff to Dublin from £21
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Dublin departing on 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Ryanair flights from Cardiff to Dublin
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Aer Lingus flights from Cardiff to Dublin
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How to get the cheapest flight ticket from Cardiff to Dublin
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Dublin?
In general, September is the cheapest month to fly from Cardiff to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £47. If you aren’t able to travel to Dublin during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of £61.
What is the cheapest day to depart on your flight to Dublin?
On average, the least expensive day to fly to Dublin from Cardiff is on a Saturday. momondo users have found tickets for Saturday departures for as low as £56. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around £113. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.
What is the cheapest time of day to depart on your flight to Dublin?
Flying to Dublin from Cardiff in the evening is the least expensive time of day to depart. momondo users have found prices as low as £50 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £79 on average. Flights to Dublin from Cardiff in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Cardiff Wales to Dublin flight route?
Fly from Cardiff Wales to Dublin for the best Cardiff Wales - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from Cardiff when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around £73 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Cardiff for as low as £46 on momondo.
What cabin class options are available on Cardiff Wales to Dublin flights?
There are 1 cabin classes available to choose from on Cardiff Wales to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Cardiff Wales to Dublin?
Ryanair, KLM, and Aer Lingus are the most popular carriers operating from Cardiff Wales to Dublin
Which airlines fly to Dublin?
Ryanair, Aer Lingus and KLM are the top three most popular airlines that fly to Dublin from Cardiff according to our data. Ryanair is the first choice among our users, with 80% of people opting to fly with this airline when travelling to Dublin. Keep in mind that there are 4 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
How many flights depart from Cardiff to Dublin on average per week?
As of June 2025, 1 flights take off from Cardiff and land in Dublin each week. The most common flight departure day for this route is Thu, with 100% of weekly flights taking off on this day.
When to book flights from Cardiff to Dublin
Cheap Cardiff to Dublin (CWL to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Cardiff to Dublin
Best price found | £21 |
|---|---|
Fastest flight time | 1h 00m |
Direct flights | Mon, Tue, Wed, Fri, Sat and Sun |
Airports in Dublin | 1 airport |
How far is Cardiff Wales to Dublin by plane?
Dublin is 182.8 mi away from Cardiff Wales. Typically, this will take 1h 00m by plane in normal conditions.
When did momondo last update prices for flights from Cardiff Wales Airport to Dublin Airport?
Prices for flights from Cardiff Wales Airport to Dublin Airport are updated daily.
How many operators does momondo search for flights from Cardiff Wales Airport to Dublin Airport?
As of June 2025, there are 3 operators available to choose from for flights from Cardiff Wales Airport to Dublin Airport.
How old do you have to be to fly from Cardiff Wales Airport to Dublin Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Cardiff to Dublin?
momondo data reveals that the most frequently booked plane model on the route from Cardiff to Dublin is Boeing 737-800 Passenger/BBJ2 (winglets), representing 54.22% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 25.29%, ATR 72-201 / 202 at 14.22%, and Airbus A320-100/200 at 4.12%.
What is the most popular airline from Cardiff to Dublin?
Based on momondo bookings for flights between Cardiff and Dublin, the leading airline is Ryanair, making up 89% of the total bookings. Other popular airlines include KLM with 7% and Aer Lingus with 4%.
Best airlines flying from Cardiff to Dublin
Compare and see reviews for airlines that fly from Cardiff to Dublin with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £29 | Free Cancellation | Rating 6.8 5,121 reviews | |||
| PriceFrom £47 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom £152 | Free Cancellation | Rating 7.8 1,358 reviews |
Ryanair Flights From Cardiff to Dublin
The lowest priced Ryanair flight from Cardiff to Dublin from the last 72 hours was £40. Generally, Ryanair has 1 flight on this route every week with an average price of £90. Ryanair is rated 6.8/10 by our users.
Travelling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Cardiff to Dublin?
Finding the right flight to Dublin from Cardiff is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.
Can I find flights from Cardiff to Dublin with flexible booking policies on momondo?
Flights from Cardiff to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Cardiff to Dublin?
Once you have performed a search for Cardiff to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Cardiff to Dublin right now. Can momondo alert me if prices change?
Price alerts on flights to Dublin from Cardiff are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.