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Cheap flights from Cardiff to Northern Ireland from £51

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BFS
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Northern Ireland
Explore the most affordable flight options available from Cardiff to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Thu 17/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Thu 24/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 30/7£95
Sat 24/1012:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Tue 27/1010:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 30/7£98
Mon 14/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Sat 19/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 2/8£100
Tue 13/1012:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 14/1010:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 31/7£102
Mon 14/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Thu 17/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 30/7£103
Wed 23/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 30/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 1/8£104
Wed 16/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 23/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 2/8£105
Sat 26/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Tue 29/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 1/8£106
Fri 25/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 30/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 1/8£106
Wed 28/1012:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 4/1110:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 1/8£108
Sat 31/1012:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Sun 8/1110:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 1/8£109
Fri 30/1012:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 4/1110:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 1/8£109

Find flight deals from Cardiff to Northern Ireland

Keep the following information in mind while searching for Cardiff to Northern Ireland flight deals. Data was last updated 4 August 2026.

Round-trip from

£95

One-way from

£51

Popular in

July

Cheapest in

October

Average price

£132

Good round-trip deal

£103 or less
Aer Lingus
  • Aer Lingus
  • 17/9-24/9
  • Nonstop
  • 2h 35m total
  • Cardiff to Northern Ireland
Search Deals
Aer Lingus
  • Aer Lingus
  • 2/10
  • Nonstop
  • 1h 20m total
  • Cardiff to Northern Ireland
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Cardiff Wales to Northern Ireland.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Northern Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 August 2026.
Use the filters below to find and compare flights from Cardiff to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Mon 14/9

12:00-13:20

Nonstop1h 20m

Belfast City

Sat 19/9

10:15-11:30

Nonstop1h 15m

£100

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Mon 7/9

12:00-13:20

Nonstop1h 20m

Belfast City

Thu 10/9

10:15-11:30

Nonstop1h 15m

£113

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 27/8

22:50-18:55

2 stops20h 05m

Belfast Intl

Thu 3/9

22:45-22:20

2 stops23h 35m

£115

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Tue 1/9

12:00-13:20

Nonstop1h 20m

Belfast City

Tue 8/9

10:15-11:30

Nonstop1h 15m

£116

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Tue 8/9

23:15-22:30

2 stops23h 15m

Belfast Intl

Tue 15/9

07:35-22:50

2 stops15h 15m

£118

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 17/9

22:50-19:30

2 stops20h 40m

Belfast Intl

Thu 24/9

06:55-22:25

2 stops15h 30m

£119

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Mon 12/10

22:10-20:40

2 stops22h 30m

Belfast Intl

Thu 15/10

12:45-07:20

2 stops18h 35m

£121

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 25/9

12:00-13:20

Nonstop1h 20m

Belfast City

Sun 27/9

10:15-11:30

Nonstop1h 15m

£123

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 3/9

22:50-18:55

2 stops20h 05m

Belfast Intl

Thu 10/9

12:45-22:25

2 stops9h 40m

£123

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 4/9

22:45-11:55

2 stops13h 10m

Belfast Intl

Thu 10/9

12:45-22:25

2 stops9h 40m

£127

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from Cardiff to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Cardiff with our price prediction graph.
Estimated return 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 Northern Ireland

What is the cheapest month to book a flight from Cardiff to Northern Ireland?

Currently, February is the cheapest month in which you can book a flight from Cardiff to Northern Ireland (average of £107). Flying from Cardiff to Northern Ireland in August is currently the most expensive (average of £156). 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 NIR?

Find hourly flight availability from Cardiff to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 August 2026.

When flying from Cardiff to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Cardiff to Northern Ireland?

Airfare is typical for this route at the moment.
Cardiff to Northern Ireland flights typically cost between £108 and £156 in September.
The cheapest return price found within the last 5 days was £113 on Multiple Airlines (7 Sept–9 Sept).

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

To ensure you get the cheapest price possible for a flight from Cardiff to Northern Ireland, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 4 August 2026.
Get a feel of what it's like to fly with Aer Lingus and easyJet from Cardiff to Northern Ireland by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,685 reviews
Check prices

Comfort

7.2

Food

6.7

Entertainment

7.0

Crew

8.1

Boarding

7.4

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.3
Good
1,685 reviews
Aer Lingus
7.3
Good
1,685 reviews
Check prices

Comfort

7.2

Food

6.7

Entertainment

7.0

Crew

8.1

Boarding

7.4

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
easyJet
6.9
Okay
1,920 reviews
Aer Lingus
7.3
Good
1,685 reviews
Check prices

Comfort

7.2

Food

6.7

Entertainment

7.0

Crew

8.1

Boarding

7.4

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Cardiff to Northern Ireland?

    Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to Northern Ireland. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

  • How long is the flight from Cardiff to Northern Ireland?

    For as low as £100, Aer Lingus can have you in Northern Ireland from Cardiff in 1h 20m. Airlines will cover a distance of 246 mi. All flights are typically direct.

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

    Yes. In addition to deals on Cardiff to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Northern Ireland?

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Northern Ireland 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 Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to Northern Ireland (average of £107). Flying from Cardiff to Northern Ireland in August is currently the most expensive (average of £156). 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

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Top 2 airlines flying from Cardiff to Northern Ireland

Discover the top 2 airlines that operate flights from Cardiff to Northern Ireland. 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 858,174 searches. Data last updated 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£60Average£91FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£94Average£127FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Northern Ireland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cardiff to Northern Ireland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Northern Ireland?

Cheapflights simply makes it quick and affordable to book flights from Cardiff to Northern Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Cardiff to Northern Ireland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Cardiff to Northern Ireland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Cardiff to Northern Ireland become cheaper?

Yes, Cheapflights offers price alerts on Cardiff to Northern Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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