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Cheap flights from Cardiff to Belfast from £40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cardiff to Belfast departing on 23/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Cardiff to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£88Aer Lingus
Thu, 3 Sep - Mon, 7 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£91Aer Lingus
Wed, 22 Jul - Tue, 28 Jul
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£92Aer Lingus
Thu, 3 Sep - Mon, 7 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£93Aer Lingus
Thu, 30 Jul - Mon, 3 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£95Aer Lingus
Thu, 30 Jul - Sun, 2 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£96Aer Lingus
Thu, 30 Jul - Mon, 3 Aug
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£98Aer Lingus
Sun, 30 Aug - Thu, 3 Sep
Aer Lingus Logo
12:00 - 13:20
CWL
-
BHD
1h 20mdirect
Aer Lingus Logo
10:15 - 11:30
BHD
-
CWL
1h 15mdirect
£107Aer Lingus
Tue, 15 Sep - Thu, 17 Sep
Multiple Airlines Logo
23:15 - 19:50
CWL
-
BFS
20h 35m
2 stops
Multiple Airlines Logo
07:35 - 22:50
BFS
-
CWL
15h 15m
2 stops
£107Multiple Airlines
Tue, 14 Jul - Tue, 21 Jul
Multiple Airlines Logo
23:15 - 22:20
CWL
-
BFS
23h 05m
2 stops
Multiple Airlines Logo
07:35 - 22:50
BFS
-
CWL
15h 15m
2 stops
£109Multiple Airlines
Wed, 22 Jul - Tue, 28 Jul

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Aer Lingus flights from Cardiff to Belfast

Our best Aer Lingus deals on Cardiff to Belfast flight tickets
Aer Lingus
3 Sept
CWL12:00Cardiff Wales
1h 20m
BHD13:20Belfast City
7 Sept
BHD10:15Belfast City
1h 15m
CWL11:30Cardiff Wales
£88
Aer Lingus
22 Jul
CWL12:00Cardiff Wales
1h 20m
BHD13:20Belfast City
28 Jul
BHD10:15Belfast City
1h 15m
CWL11:30Cardiff Wales
£91
Aer Lingus
3 Sept
CWL12:00Cardiff Wales
1h 20m
BHD13:20Belfast City
7 Sept
BHD10:15Belfast City
1h 15m
CWL11:30Cardiff Wales
£92

momondo 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, momondo users made 279,928 searches. Data last updated 17 June 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
Fastest return journey

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 3/9

12:00-13:20

Nonstop1h 20m

Belfast City

Mon 7/9

10:15-11:30

Nonstop1h 15m

£88

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Wed 22/7

12:00-13:20

Nonstop1h 20m

Belfast City

Tue 28/7

10:15-11:30

Nonstop1h 15m

£91

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 3/9

12:00-13:20

Nonstop1h 20m

Belfast City

Mon 7/9

10:15-11:30

Nonstop1h 15m

£92

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 30/7

12:00-13:20

Nonstop1h 20m

Belfast City

Mon 3/8

10:15-11:30

Nonstop1h 15m

£93

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 30/7

12:00-13:20

Nonstop1h 20m

Belfast City

Sun 2/8

10:15-11:30

Nonstop1h 15m

£95

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Thu 30/7

12:00-13:20

Nonstop1h 20m

Belfast City

Mon 3/8

10:15-11:30

Nonstop1h 15m

£96

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Sun 30/8

12:00-13:20

Nonstop1h 20m

Belfast City

Thu 3/9

10:15-11:30

Nonstop1h 15m

£98

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Tue 15/9

12:00-13:20

Nonstop1h 20m

Belfast City

Thu 17/9

10:15-11:30

Nonstop1h 15m

£107

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Tue 14/7

23:15-19:50

2 stops20h 35m

Belfast Intl

Tue 21/7

07:35-22:50

2 stops15h 15m

£107

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Wed 22/7

23:15-22:20

2 stops23h 05m

Belfast Intl

Tue 28/7

07:35-22:50

2 stops15h 15m

£109

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Cardiff to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Cardiff and Belfast?

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from Cardiff is in October. Flight prices, which tend to average around £29, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £60.

What is the cheapest Cardiff Wales to Belfast flight route?

Fly from Cardiff Wales to Belfast City for the best Cardiff Wales - Belfast flight prices

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

You are more likely to see cheaper flights to Belfast from Cardiff when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £127 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast from Cardiff for as low as £75 on momondo.

What cabin class options are available on Cardiff to Belfast flights?

There is only 1 cabin class available to choose from on Cardiff to Belfast flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Cardiff to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Belfast

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Belfast

2 airports
The fastest flight from Cardiff to Belfast takes 1h 20m
Direct flights go from Cardiff to Belfast every day.
There are 2 airports in Belfast. From Cardiff there are direct flights to Belfast City (BHD).
Search flight deals

Frequently asked questions about flying from Cardiff to Belfast

  • How far is Cardiff Wales to Belfast by plane?

    The distance between Cardiff Wales and Belfast is about 243.6 mi. Typically, this will take 1h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Cardiff Wales Airport to Belfast?

    Prices for flights from Cardiff Wales Airport to Belfast were last updated today.

  • How many operators does momondo search for flights from Cardiff Wales Airport to Belfast?

  • How old do you have to be to fly from Cardiff Wales Airport to Belfast?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Cardiff to Belfast

Compare and see reviews for airlines that fly from Cardiff to Belfast with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £60Free CancellationRating
6.9
1,909 reviews
Search easyJet flights
Aer LingusPriceFrom £91Free CancellationRating
7.3
1,604 reviews
Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Belfast?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cardiff to Belfast for you.

Can I find flights from Cardiff to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Cardiff to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Cardiff to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Cardiff.

I’m not ready to book a flight from Cardiff to Belfast right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Cardiff to Belfast flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport