£46 Find Cheap Flights from Cardiff to Northern Ireland – Compare and Save

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 13/10. 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.
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1 adult, Economy, 0 bags

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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

Fri, 25 Sep - Sun, 27 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£106Aer Lingus
Mon, 10 Aug - Fri, 14 Aug
Multiple Airlines Logo
22:10 - 10:00
CWL
-
BFS
11h 50m
2 stops
Multiple Airlines Logo
08:55 - 06:55
BFS
-
CWL
22h 00m
2 stops
£106Multiple Airlines
Tue, 11 Aug - Tue, 18 Aug
Multiple Airlines Logo
23:15 - 23:20
CWL
-
BFS
24h 05m
2 stops
Multiple Airlines Logo
07:35 - 22:50
BFS
-
CWL
15h 15m
2 stops
£107Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Multiple Airlines Logo
22:50 - 19:30
CWL
-
BFS
20h 40m
2 stops
Multiple Airlines Logo
21:55 - 22:50
BFS
-
CWL
24h 55m
2 stops
£108Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
23:15 - 22:20
CWL
-
BFS
23h 05m
2 stops
Multiple Airlines Logo
07:30 - 22:50
BFS
-
CWL
15h 20m
2 stops
£109Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£109Aer Lingus
Thu, 13 Aug - Mon, 17 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£110Aer Lingus
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
23:15 - 22:20
CWL
-
BFS
23h 05m
2 stops
Multiple Airlines Logo
07:30 - 22:50
BFS
-
CWL
15h 20m
2 stops
£110Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Multiple Airlines Logo
22:50 - 19:30
CWL
-
BFS
20h 40m
2 stops
Multiple Airlines Logo
21:55 - 22:50
BFS
-
CWL
24h 55m
2 stops
£111Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£112Aer 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 August.

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 £95 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 5 days was £95.

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 £131 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 £131.

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 £134, 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 £29 (return) on average. On the other hand, the most expensive months are June and January, when the average cost of return tickets is £97 and £94 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, Wednesday 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£46
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Cardiff to Belfast City 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 - £118 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.
7.3
Aer LingusOverall score based on 1644 reviews
7.4Boarding
8.1Crew
7.2Comfort
7.0Entertainment
6.6Food
Airline reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

2.0 MediocreGeorge Craig, Jul 2026
DUB - LHR
Read more Aer Lingus reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

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!

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

As four hour wait with no explanation as to why the delay Very unacceptable

Whole way through - far more professional and slick than I expected

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!!

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

Be sure to check bags for 23 kg,.(50 lbs) Coming from US I chose the wrong size luggage weight when I checked in on my phone, and had to pay more when I dropped it off

The on board air steward really made the journey. He was very entertaining

I was disappointed there was a 40 minute delay to flight

The trip itself was good. I have given only good as rating, because my first flight has been cancelled by a different airline and that caused disruption in my trip. I spent over ten hours in Luton airport and that caused me high tiredness, sickness, because of the very early initial trip. easyJet staff has been professional and friendly.

Not great! Rude staff in London and the worse baggage reclaim I’ve ever seen. Great staff in flight but doubt I’ll fly with them again

3 hours delayed Don’t understand why when you have paid for ‘speedy boarding’ they call you forward to then make you stand fir another 20 minutes in a confined space before boarding the plane.

Delayed and ketone runway. Was told some nonsense about thunderstorms slowing down flights. Why not just come out and tell customers NATO and BRITISH FORCES were doing defence exercises and were in control of AIR SPACE.

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

Information on your arrival and departure airports