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Cheap flights from Cardiff to Belfast from £45

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BHD
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Belfast
Explore the most affordable flight options available from Cardiff to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Wed 13/512:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Thu 14/510:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 10/3£97
Thu 19/308:35
CWL
-
BHD
Nonstop1h 25m
Aer Lingus
Fri 20/306:45
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 10/3£103
Thu 14/512:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Sat 23/510:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 6/3£103
Tue 21/421:45
CWL
-
BFS
1 stop13h 20m
Multiple Airlines
Tue 28/423:30
BFS
-
CWL
2 stops23h 55m
Multiple Airlines
Deal found 7/3£106
Tue 1/1212:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Tue 8/1210:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 8/3£110
Tue 1/1212:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Sun 6/1210:10
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 8/3£111
Thu 24/912:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Fri 25/910:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 8/3£112
Thu 26/308:35
CWL
-
BHD
Nonstop1h 25m
Aer Lingus
Fri 27/306:45
BHD
-
CWL
Nonstop1h 20m
Aer Lingus
Deal found 6/3£112
Mon 18/512:00
CWL
-
BHD
Nonstop1h 20m
Aer Lingus
Wed 20/510:15
BHD
-
CWL
Nonstop1h 15m
Aer Lingus
Deal found 9/3£114
Fri 17/422:45
CWL
-
BFS
2 stops17h 45m
Multiple Airlines
Mon 20/408:40
BFS
-
CWL
2 stops13h 05m
Multiple Airlines
Deal found 9/3£114
Mon 23/323:30
CWL
-
BHD
2 stops17h 25m
Multiple Airlines
Fri 27/306:45
BHD
-
CWL
Nonstop1h 20m
Multiple Airlines
Deal found 8/3£118
Thu 16/422:50
CWL
-
BFS
2 stops20h 40m
Multiple Airlines
Mon 27/417:35
BFS
-
CWL
1 stop16h 15m
Multiple Airlines
Deal found 8/3£119

Find flight deals from Cardiff to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 March 2026.

Round-trip from

£97

One-way from

£45

Popular in

July

Cheapest in

October

Average price

£129
Aer Lingus
  • Aer Lingus
  • 13/5-14/5
  • Nonstop
  • 2h 35m total
  • Cardiff to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 10/5
  • Nonstop
  • 1h 20m total
  • Cardiff to Belfast
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Belfast 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 11 March 2026.
Use the filters below to find and compare flights from Cardiff to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Tue 21/4

21:45-11:05

1 stop13h 20m

Belfast Intl

Tue 28/4

23:30-23:25

2 stops23h 55m

£106

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Mon 23/3

12:00-13:25

Nonstop1h 25m

Belfast City

Fri 27/3

06:45-08:05

Nonstop1h 20m

£124

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 3/4

22:45-16:30

2 stops17h 45m

Belfast Intl

Fri 10/4

19:20-06:55

2 stops11h 35m

£130

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 17/4

09:00-10:25

Nonstop1h 25m

Belfast City

Sun 19/4

10:15-11:30

Nonstop1h 15m

£146

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 9/4

12:00-13:20

Nonstop1h 20m

Belfast City

Mon 13/4

10:15-11:30

Nonstop1h 15m

£164

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 24/4

17:45-10:05

1 stop16h 20m

Belfast Intl

Fri 1/5

21:05-08:55

2 stops35h 50m

£169

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 10/4

17:45-09:05

2 stops15h 20m

Belfast Intl

Fri 17/4

16:10-11:50

1 stop19h 40m

£176

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Sun 5/4

12:00-13:20

Nonstop1h 20m

Belfast City

Wed 8/4

10:15-11:30

Nonstop1h 15m

£186

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 3/4

22:45-17:20

2 stops18h 35m

Belfast City

Fri 10/4

10:15-11:30

Nonstop1h 15m

£191

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 10/4

12:00-13:20

Nonstop1h 20m

Belfast City

Fri 10/4

18:20-06:55

2 stops12h 35m

£193

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 39 resultsSorted by cheapest first
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Best time to book a flight from Cardiff to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast

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

Use this chart to determine the optimal time to book a return flight from Cardiff to Belfast. Price data was last updated on 6 March 2026.

The price you pay for your flight from Cardiff to Belfast may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £15). Flying from Cardiff to Belfast in August is currently the most expensive (average of £52). 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 BFS?

Find hourly flight availability from Cardiff to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 March 2026.

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

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 11 March 2026.
Check out reviews from past customers who have flown with Aer Lingus and easyJet from Cardiff to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,474 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Overall

7.2

Crew

8.1

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
7.2
Good
1,474 reviews
Aer Lingus
7.2
Good
1,474 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Overall

7.2

Crew

8.1

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
1,885 reviews
Aer Lingus
7.2
Good
1,474 reviews
Check prices

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Food

6.6

Overall

7.2

Crew

8.1

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 Belfast. 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 Belfast?

    Located just 9.1 mi from the city center, Cardiff Wales is the airport most travelers will use when flying to Belfast from Cardiff. Booking flights from Cardiff Wales (CWL) to Belfast should be relatively easy as there are 0 daily outbound flights to Belfast from 2 different airlines.

  • How long is the flight from Cardiff to Belfast?

    There are many flights that can get you from Cardiff to Belfast in 1h 25m. Fly via Aer Lingus to get the fastest option. Cardiff and Belfast are separated by a distance of 246 mi. All flights are typically direct.

  • What are the cheapest airlines flying from Cardiff to Belfast round-trip?

    Cheapflights users have booked flights from Cardiff to Belfast round-trip from £29. Another airline that can offer you cheap pricing is Aer Lingus. easyJet is priced at 76% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Cardiff to Belfast?

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Belfast 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 Belfast?

    Currently, December is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £15). Flying from Cardiff to Belfast in August is currently the most expensive (average of £52). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Cardiff to Belfast

Discover the top 2 airlines that operate flights from Cardiff to Belfast. 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 11 March 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£29Average£93FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£91Average£123FlexibilityNo 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 Belfast?

Cheapflights makes it easy to find Cardiff to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Cardiff to Belfast for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Belfast from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Cardiff to Belfast 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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