£88 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 22/5. 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

Thu, 12 Feb - Sun, 15 Feb
Aer Lingus Logo
08:35 - 10:00
CWL
-
BHD
1h 25mdirect
Aer Lingus Logo
10:10 - 11:30
BHD
-
CWL
1h 20mdirect
£102Aer Lingus
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
20:05 - 14:40
CWL
-
BFS
18h 35m2 stops
Multiple Airlines Logo
05:45 - 19:40
BFS
-
CWL
13h 55m2 stops
£131Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
20:25 - 22:30
CWL
-
BFS
26h 05m1 stop
Multiple Airlines Logo
22:25 - 20:55
BFS
-
CWL
22h 30m2 stops
£159Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
20:25 - 22:30
CWL
-
BFS
26h 05m1 stop
Multiple Airlines Logo
15:45 - 18:00
BFS
-
CWL
26h 15m1 stop
£234Multiple Airlines
Mon, 5 Jan - Thu, 8 Jan
British Airways Logo
12:00 - 13:25
CWL
-
BHD
1h 25mdirect
British Airways Logo
06:45 - 08:05
BHD
-
CWL
1h 20mdirect
£236British Airways
Mon, 5 Jan - Thu, 8 Jan
British Airways Logo
12:00 - 13:25
CWL
-
BHD
1h 25mdirect
British Airways Logo
06:45 - 08:05
BHD
-
CWL
1h 20mdirect
£237British Airways
Fri, 30 Jan - Sun, 1 Feb
Aer Lingus Logo
08:35 - 10:00
CWL
-
BHD
1h 25mdirect
Aer Lingus Logo
10:10 - 11:30
BHD
-
CWL
1h 20mdirect
£399Aer 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.

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 £89 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 £89.

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 £145, 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 January, when tickets cost £93 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £147 and £141 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 a flight from Cardiff to Northern Ireland, you should book around 3 weeks before departure, which saves you about 29% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know - Cheap tickets from Cardiff to Northern Ireland

Low seasonNovember
Cheapest flight£88
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (1% more expensive 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.

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

    The cheapest time of day to fly to Northern Ireland is generally at night, when retur flights cost £93 on average. Morning departures are around 36% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £207.

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 £45 one-way - £98 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 1395 reviews
7.4Boarding
7.1Comfort
8.0Crew
6.9Entertainment
6.6Food
Airline reviews

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

10.0 ExcellentAnonymous, Dec 2025
BCN - DUB
Read more Aer Lingus reviews

The folks and flights were fantastic. I unfortunately wasn’t able to order a meal that I could eat (I’m gluten free) because I got my ticket through kayak, but they tried their best to find something to help me get through the long flight and I’ll forever remember their kindness.

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.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

I liked that I went thru customs in Dublin instead of having to do that in LA.

Because of problem with aer Lingus, I couldn’t check in until just before the flight and was stuck in the middle seat

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Wheelchair assistance didn't turn up on time. We had to walk to baggage reclaim and to taxi.

Conveyer belt at the check in area stopped working and check in process was significantly slowed down.

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

Liked. The check-in was pretty quick as they had 5 desks working.

Generally a good experience except for boarding in Naples on the flight back to London. We were all standing around for at least 20 minutes maybe longer as there was no seating.

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

Boarding was smooth and quick. Flight departed on time. Equally evacuation upon landing was from both the front door and the back doors. Bags were on the conveyor belts before I got there. Excellent service.

The terminals are far away, be prepared to walk. Also, You climb stairs to the plane since there are no aero bridges. Boarding was haphazard not in multiple groups, so stand in line early. Hard to find place to stow cabin baggage if you are behind in the line. You can purchase food on the plane. There are vegetarian options.

First -the flight was late - more than two hours Second, not even a bottle of water at bord to give for free for this inconvenience. Three-at landing ive realised that I've lost one of my ear plug headphones and been very desperate to find it with my torch, the crew not helped at all more than that they asked to leave the plane as everyone did before me. This was the last flight from that day- extra 5 min for me with a bit of help from crew - would have bring a super review. I guess this days humanity disappeared!

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

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.

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

Information on your arrival and departure airports