£45 Find Cheap Flights from Cardiff to Northern Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cardiff to Northern Ireland departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cardiff to Northern Ireland, as well as popular online travel agencies
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Flight Deals

Book Cheap Cardiff to Northern Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Cardiff to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Cardiff to Northern Ireland

Tue, 5 May - Mon, 11 May
Multiple Airlines Logo
21:45 - 11:05
CWL
-
BFS
13h 20m
1 stop
Multiple Airlines Logo
09:15 - 21:45
BFS
-
CWL
12h 30m
2 stops
£95Multiple Airlines
Tue, 5 May - Mon, 11 May
Multiple Airlines Logo
21:45 - 11:05
CWL
-
BFS
13h 20m
1 stop
Multiple Airlines Logo
09:15 - 21:45
BFS
-
CWL
12h 30m
2 stops
£95Multiple Airlines
Tue, 28 Apr - Tue, 5 May
Multiple Airlines Logo
16:15 - 00:05
CWL
-
BFS
7h 50m
1 stop
Multiple Airlines Logo
07:35 - 22:50
BFS
-
CWL
15h 15m
2 stops
£96Multiple Airlines
Tue, 5 May - Mon, 11 May
Ryanair Logo
21:45 - 11:05
CWL
-
BFS
13h 20m
1 stop
Ryanair Logo
17:35 - 09:50
BFS
-
CWL
16h 15m
1 stop
£100Ryanair
Wed, 16 Sep - Wed, 23 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£101Aer Lingus
Tue, 5 May - Mon, 11 May
Ryanair Logo
21:45 - 11:05
CWL
-
BFS
13h 20m
1 stop
Ryanair Logo
17:35 - 09:50
BFS
-
CWL
16h 15m
1 stop
£101Ryanair
Tue, 28 Apr - Tue, 5 May
Multiple Airlines Logo
23:15 - 15:15
CWL
-
BFS
16h 00m
2 stops
Multiple Airlines Logo
07:35 - 22:50
BFS
-
CWL
15h 15m
2 stops
£104Multiple Airlines
Tue, 28 Apr - Tue, 5 May
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£105Aer Lingus
Mon, 11 May - Thu, 14 May
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£106Aer Lingus
Thu, 16 Apr - Thu, 23 Apr
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£107Aer Lingus
Booking Insights

KAYAK's insights & trends for Cardiff to Northern Ireland flights

Get data-powered insights and trends into flights from Cardiff to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Cardiff to Northern Ireland?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Cardiff to Northern Ireland departing in May.

What is the cheapest Cardiff to Northern Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Northern Ireland from Cardiff found in the last 72 hours was to Belfast, at £99 return. The most popular route is from Cardiff (CWL) to Belfast City Airport (BHD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £99.

What is the cheapest time of day to fly to Northern Ireland?

The average price for all round-trip flights from Cardiff to Northern Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Northern Ireland is generally in the morning, when retur flights cost £129 on average. The most expensive time of day to fly to Northern Ireland is generally in the morning, which is peak travel time and where the average cost of a ticket is £129.

Can I save money by flying with a stopover from Cardiff to Northern Ireland?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £146, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Cardiff to Northern Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cardiff to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Cardiff to Northern Ireland is October, when tickets cost £104 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of return tickets is £151 and £134 respectively.

What’s the cheapest day of the week to fly from Cardiff to Northern Ireland?

The average price of all round-trip flights from Cardiff to Northern Ireland clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Cardiff to Northern Ireland, look for departures on Wednesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Northern Ireland, Tuesday is the cheapest day to fly and Monday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cardiff to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Cardiff to Northern Ireland, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know - Cheap tickets from Cardiff to Northern Ireland

Low seasonFebruary
Cheapest flight£45
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Cardiff to Belfast Intl Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from Cardiff to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cardiff to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cardiff to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cardiff to Northern Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cardiff to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Cardiff to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cardiff to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cardiff to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from Cardiff to Northern Ireland

  • Looking for a cheap flight from Cardiff to Northern Ireland? 25% of our users found tickets from Cardiff to Northern Ireland for the following prices or less: Belfast £70 one-way - £112 round-trip

Reviews of the top airlines flying from Cardiff to Northern Ireland

 
See real verified KAYAK customer reviews for airlines flying from Cardiff to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Cardiff to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1494 reviews
8.1Crew
7.0Entertainment
6.6Food
7.4Boarding
7.2Comfort
Airline reviews

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

2.0 MediocreAnonymous, Mar 2026
BHD - MAN
Read more Aer Lingus reviews

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Seats a little to soft on the SFO DUB flight

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

It was good except they could offer free water and tea/coffe

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

Everything you need to know for your flight from Cardiff to Northern Ireland

Information on your arrival and departure airports