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Cheap flights from Cardiff to Belfast Intl Airport from £54

CWL — BFS
24 Sep — 1 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Belfast Intl

Mon 21/922:10 -
2 stops11h 50m
Mon 28/908:40 -
2 stops13h 05m
Deal found 21/8£103
Tue 22/923:15 -
2 stops16h 00m
Thu 24/912:45 -
2 stops9h 40m
Deal found 24/8£104
Wed 23/923:50 -
2 stops15h 30m
Wed 30/915:40 -
2 stops7h 45m
Deal found 24/8£106
Sat 5/907:30 -
2 stops13h 45m
Tue 8/907:35 -
2 stops15h 15m
Deal found 22/8£109
Wed 7/1023:50 -
2 stops15h 30m
Wed 14/1008:55 -
2 stops14h 30m
Deal found 23/8£117
Tue 6/1023:15 -
2 stops16h 00m
Tue 13/1008:50 -
2 stops14h 00m
Deal found 21/8£124
Thu 1/1022:50 -
2 stops13h 00m
Mon 5/1008:40 -
2 stops13h 05m
Deal found 22/8£125
Sun 20/921:45 -
2 stops11h 25m
Sun 27/922:00 -
2 stops23h 45m
Deal found 20/8£126
Tue 6/1023:15 -
2 stops16h 00m
Fri 9/1019:20 -
2 stops11h 35m
Deal found 20/8£129

Find flight deals from Cardiff to Belfast Intl

Round-trip from

£103

One-way from

£54

Popular in

July

Cheapest in

October

Average price

£130
21/9-28/9
  • 21/9-28/9
  • 4 total stops
  • 24h 55m total
  • Cardiff to Belfast
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29/9
  • 29/9
  • 2 total stops
  • 16h 00m total
  • Cardiff to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£13 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Cardiff to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Sat 5/9

07:30-21:15

2 stops13h 45m

Belfast Intl

Tue 8/9

07:35-22:50

2 stops15h 15m

£109

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 1/10

22:50-11:50

2 stops13h 00m

Belfast Intl

Mon 5/10

08:40-21:45

2 stops13h 05m

£125

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 22/9

21:45-11:05

1 stop13h 20m

Belfast Intl

Thu 24/9

12:45-22:25

2 stops9h 40m

£128

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 6/10

23:15-15:15

2 stops16h 00m

Belfast Intl

Fri 9/10

07:35-22:20

2 stops14h 45m

£131

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 8/10

22:50-15:20

2 stops16h 30m

Belfast Intl

Thu 15/10

09:15-22:25

2 stops13h 10m

£131

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Sat 5/9

07:30-21:15

2 stops13h 45m

Belfast Intl

Sun 6/9

21:40-21:45

2 stops24h 05m

£132
Fastest return journey

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 10/9

22:50-14:00

2 stops15h 10m

Belfast Intl

Wed 16/9

15:40-23:25

2 stops7h 45m

£133

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 6/10

21:45-11:05

1 stop13h 20m

Belfast Intl

Tue 13/10

08:50-22:50

2 stops14h 00m

£153
Cheapest one-way

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 29/9

23:15-15:15

2 stops16h 00m

£54

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 15/9

23:15-15:15

2 stops16h 00m

£59

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 17 resultsSorted by cheapest first
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

Cheapflights Insights

Everything you need to know about your flight from Cardiff to Belfast Intl Airport

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 £116). Flying from Cardiff to Belfast Intl Airport in July is currently the most expensive (average of £172). 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.

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

Airfare is below average for this route at the moment.

Cardiff to Belfast Intl Airport flights typically cost between £110 and £139 in September.
The cheapest return price found within the last 5 days was £103 on Multiple Airlines (21 Sept–28 Sept).

Reviews of airlines servicing Belfast Intl

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.
Aer Lingus
7.3
Good
1,723 reviews
Check prices

Food

6.7

Comfort

7.2

Boarding

7.5

Overall

7.3

Crew

8.1

Entertainment

7.0

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
1,723 reviews
Aer Lingus
7.3
Good
1,723 reviews
Check prices

Food

6.7

Comfort

7.2

Boarding

7.5

Overall

7.3

Crew

8.1

Entertainment

7.0

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
1,928 reviews
Aer Lingus
7.3
Good
1,723 reviews
Check prices

Food

6.7

Comfort

7.2

Boarding

7.5

Overall

7.3

Crew

8.1

Entertainment

7.0

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

  • 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 £59 on this airline. An additional option worth looking into is Aer Lingus, starting at £95. easyJet is 53% 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 £116). Flying from Cardiff to Belfast Intl Airport in July is currently the most expensive (average of £172). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Cardiff to Belfast Intl

Manchester to Belfast Intl flights
Manchester to Belfast City flights
Bristol to Belfast Intl flights
Bristol to Belfast City flights
Cardiff to Belfast City flights

Top 2 airlines flying from Cardiff to Belfast Intl

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£59Average£90FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£95Average£129FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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.

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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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