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Cheap flights from Cardiff to Belfast from £40

CWL — BHD
5 Oct — 12 Oct1
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

Sun 29/1109:00 -
Nonstop1h 25m
Wed 2/1210:20 -
Nonstop1h 25m
Deal found 4/9£92
Tue 13/1012:00 -
Nonstop1h 20m
Sat 17/1010:15 -
Nonstop1h 15m
Deal found 4/9£92
Thu 22/1012:00 -
Nonstop1h 20m
Sun 25/1007:05 -
Nonstop1h 25m
Deal found 2/9£93
Mon 26/1009:00 -
Nonstop1h 25m
Fri 30/1007:05 -
Nonstop1h 25m
Deal found 3/9£99
Sun 4/1012:00 -
Nonstop1h 20m
Tue 6/1010:15 -
Nonstop1h 15m
Deal found 5/9£103
Mon 26/1009:00 -
Nonstop1h 25m
Sat 31/1007:05 -
Nonstop1h 25m
Deal found 3/9£105
Sun 18/1012:00 -
Nonstop1h 20m
Tue 20/1010:15 -
Nonstop1h 15m
Deal found 1/9£106
Sat 19/912:00 -
Nonstop1h 20m
Wed 23/910:15 -
Nonstop1h 15m
Deal found 4/9£107
Thu 8/1012:00 -
Nonstop1h 20m
Thu 15/1010:15 -
Nonstop1h 15m
Deal found 3/9£108
Fri 2/1012:00 -
Nonstop1h 20m
Fri 9/1010:15 -
Nonstop1h 15m
Deal found 4/9£110
Mon 7/922:10 -
2 stops11h 50m
Wed 9/907:30 -
2 stops15h 55m
Deal found 4/9£112
Tue 20/1023:15 -
2 stops17h 00m
Thu 22/1012:45 -
2 stops9h 40m
Deal found 4/9£116

Find flight deals from Cardiff to Belfast

Round-trip from

£92

One-way from

£40

Popular in

July

Cheapest in

January

Average price

£126
Aer Lingus
  • Aer Lingus
  • 29/11-2/12
  • Nonstop
  • 2h 50m total
  • Cardiff to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 13/12-31/12
  • Nonstop
  • 1h 25m 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).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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 Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 20/10

21:45-11:05

1 stop13h 20m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£51
Fastest return journey

CardiffBelfast

CWL Cardiff Wales - BHD Belfast City

CWLBHD

Cardiff Wales

Mon 28/9

12:00-13:20

Nonstop1h 20m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£59

CardiffBelfast

CWL Cardiff Wales - BHD Belfast City

CWLBHD

Cardiff Wales

Thu 1/10

12:00-13:20

Nonstop1h 20m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Mon 14/9

22:10-10:00

2 stops11h 50m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

CardiffBelfast

CWL Cardiff Wales - BHD Belfast City

CWLBHD

Cardiff Wales

Sun 13/9

12:00-13:20

Nonstop1h 20m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Mon 9/11

08:35-21:40

2 stops13h 05m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£67

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 20/10

23:15-16:15

2 stops17h 00m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£68

CardiffBelfast

CWL Cardiff Wales - BHD Belfast City

CWLBHD

Cardiff Wales

Thu 8/10

12:00-13:20

Nonstop1h 20m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

CardiffBelfast

CWL Cardiff Wales - BHD Belfast City

CWLBHD

Cardiff Wales

Sat 2/1

09:00-10:25

Nonstop1h 25m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£72

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Mon 30/11

08:35-20:35

2 stops12h 00m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£73

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
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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

Cheapflights Insights

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

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

Currently, February is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £111). Flying from Cardiff to Belfast in March 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 BFS?

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.

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

Airfare is below average for this route at the moment.
Cardiff to Belfast flights typically cost between £99 and £143 in November.
The cheapest return price found within the last 5 days was £92 on Aer Lingus (29 Nov–2 Dec).

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

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 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Belfast

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
7.3
Good
1,745 reviews
Check prices

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

Comfort

7.2

Boarding

7.5

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
1,745 reviews
Aer Lingus
7.3
Good
1,745 reviews
Check prices

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

Comfort

7.2

Boarding

7.5

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
1,927 reviews
Aer Lingus
7.3
Good
1,745 reviews
Check prices

Overall

7.3

Crew

8.1

Food

6.7

Entertainment

7.0

Comfort

7.2

Boarding

7.5

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?

    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 20m. 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 £61. Another airline that can offer you cheap pricing is Aer Lingus. easyJet is priced at 52% 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, February is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £111). Flying from Cardiff to Belfast in March 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Cardiff to Belfast

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£61Average£92FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£93Average£128FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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