Cheap flights from Cardiff to Belfast Intl Airport from £64

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 19/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BFS
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Cardiff Wales to Belfast Intl are usually found in January or October, booked 2 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Cardiff to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Belfast Intl
Explore the most affordable flight options available from Cardiff to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Fri 12/1216:05CWL - BFS
1 stop16h 00mMultiple Airlines
Mon 15/1206:50BFS - CWL
1 stop9h 10mMultiple Airlines
Deal found 2/12£109
Wed 31/1215:55CWL - BFS
2 stops16h 30mMultiple Airlines
Wed 7/107:55BFS - CWL
2 stops26h 10mMultiple Airlines
Deal found 3/12£121
Wed 10/1219:10CWL - BFS
2 stops21h 00mMultiple Airlines
Thu 11/1221:00BFS - CWL
2 stops18h 40mMultiple Airlines
Deal found 3/12£135
Thu 18/1216:30CWL - BFS
2 stops14h 50mMultiple Airlines
Thu 8/121:05BFS - CWL
2 stops24h 55mMultiple Airlines
Deal found 4/12£160
Thu 18/1216:30CWL - BFS
2 stops14h 50mMultiple Airlines
Tue 23/1206:30BFS - CWL
2 stops15h 05mMultiple Airlines
Deal found 4/12£162

Find flight deals from Cardiff to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Belfast Intl (BFS). 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 5 December 2025.

Round-trip from

£114

One-way from

£64

Popular in

December

Cheapest in

January

Average price

£142
18/1-25/1
  • 18/1-25/1
  • 3 total stops
  • 37h 25m total
  • Cardiff to Belfast
19/12
  • 19/12
  • 1 total stop
  • 30h 30m total
  • Cardiff to Belfast
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Belfast Intl 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 5 December 2025.
Use the filters below to find and compare flights from Cardiff to Belfast Intl Airport that are best for you.

Fly from

Cardiff

Fly to

Belfast Intl

Route

Depart

Return

Price

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Sun 18/1

10:05-22:30

1 stop12h 25m

Belfast Intl

Sun 25/1

22:05-23:05

2 stops25h 00m

£114

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Wed 31/12

15:55-08:25

2 stops16h 30m

Belfast Intl

Wed 7/1

07:55-10:05

2 stops26h 10m

£121

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 1/1

10:30-21:10

2 stops10h 40m

Belfast Intl

Thu 8/1

21:05-22:00

2 stops24h 55m

£129

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Tue 6/1

16:45-20:30

2 stops27h 45m

Belfast Intl

Fri 9/1

05:45-15:40

1 stop9h 55m

£149

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 18/12

16:30-07:20

2 stops14h 50m

Belfast Intl

Thu 8/1

21:05-22:00

2 stops24h 55m

£160

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 18/12

16:30-07:20

2 stops14h 50m

Belfast Intl

Tue 23/12

06:30-21:35

2 stops15h 05m

£162

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 8/1

10:30-22:30

2 stops12h 00m

Belfast Intl

Fri 9/1

05:45-15:40

1 stop9h 55m

£235

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 19/12

16:05-22:35

1 stop30h 30m

£64

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Sun 15/2

18:25-18:55

2 stops24h 30m

£65

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Thu 1/1

10:30-20:50

2 stops10h 20m

£72

Flights are sorted by cheapest return flights first.

Deals found on 4/12

Showing 1-10 of 12 results
1
2

Best time to book a flight from Cardiff to Belfast Intl

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

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

Use this chart to determine the optimal time to book a return flight from Cardiff to Belfast Intl. Price data was last updated on 28 November 2025.

Booking 2 days in advance of your planned departure date is, on average, the best time to get cheap flights from Cardiff to Belfast Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Cardiff to Belfast Intl Airport (average of £34). Flying from Cardiff to Belfast Intl Airport in August is currently the most expensive (average of £55). 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 Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.

When flying from Cardiff to Belfast Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight at midday.

How much does it cost for a return flight from Cardiff to Belfast Intl Airport?

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Intl. Reviews last updated 5 December 2025.
Get a feel of what it's like to fly with Aer Lingus and easyJet from Cardiff to Belfast Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.1

Overall

7.2

Boarding

7.4

Crew

8.0

Food

6.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Comfort

7.1

Overall

7.2

Boarding

7.4

Crew

8.0

Food

6.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Comfort

7.1

Overall

7.2

Boarding

7.4

Crew

8.0

Food

6.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Belfast Intl. 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 Intl?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly out of when you book flights from Cardiff to Belfast Intl. 2 airlines have flights from Cardiff Wales to Belfast Intl on a regular basis. Booking flights from Cardiff Wales to Belfast Intl should not be difficult; the airport handles an average of 0 outbound flights to Belfast Intl per day.

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

    Our cheapest airline available from Cardiff to Belfast Intl Airport is easyJet. Our recent data shows that you can find tickets from as low as £29 on this airline. An additional option worth looking into is Aer Lingus, starting at £86. easyJet is 75% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Belfast Intl Airport (average of £34). Flying from Cardiff to Belfast Intl Airport in August is currently the most expensive (average of £55). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Alternative routes for Cardiff to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Cardiff to Belfast Intl

Discover the top 2 airlines that operate flights from Cardiff to Belfast Intl. 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£64Average£92FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£87Average£119FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Cardiff to Belfast Intl?

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Cardiff to Belfast Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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