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Cheap flights from Cardiff to Belfast from £56

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 7/9. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cardiff to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
23:50 - 19:15CWL  Cardiff Wales-BFS Belfast Intl
19h 25m2 stops Dublin Edinburgh Turnhouse
Multiple Airlines Logo
07:35 - 22:50BFS  Belfast Intl-CWL Cardiff Wales
15h 15m2 stops Manchester Dublin
£94Multiple Airlines
Wed, 16 Sep - Tue, 29 Sep
Multiple Airlines Logo
22:10 - 12:15CWL  Cardiff Wales-BFS Belfast Intl
14h 05m2 stops Dublin London Stansted
Multiple Airlines Logo
07:30 - 23:25BFS  Belfast Intl-CWL Cardiff Wales
15h 55m2 stops Manchester Dublin
£104Multiple Airlines
Mon, 28 Sep - Wed, 30 Sep
Multiple Airlines Logo
22:10 - 10:00CWL  Cardiff Wales-BFS Belfast Intl
11h 50m2 stops Dublin Manchester
Multiple Airlines Logo
12:45 - 22:25BFS  Belfast Intl-CWL Cardiff Wales
9h 40m2 stops Manchester Dublin
£105Multiple Airlines
Mon, 21 Sep - Thu, 24 Sep
Multiple Airlines Logo
23:15 - 23:20CWL  Cardiff Wales-BFS Belfast Intl
24h 05m2 stops Dublin London Stansted
Multiple Airlines Logo
08:55 - 06:55BFS  Belfast Intl-CWL Cardiff Wales
22h 00m2 stops Manchester Dublin
£110Multiple Airlines
Tue, 13 Oct - Fri, 16 Oct
Multiple Airlines Logo
22:50 - 18:55CWL  Cardiff Wales-BFS Belfast Intl
20h 05m2 stops Dublin Edinburgh Turnhouse
Multiple Airlines Logo
14:50 - 22:25BFS  Belfast Intl-CWL Cardiff Wales
7h 35m2 stops London Stansted Dublin
£114Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
21:45 - 18:25CWL  Cardiff Wales-BFS Belfast Intl
20h 40m2 stops Dublin Edinburgh Turnhouse
Multiple Airlines Logo
22:00 - 21:45BFS  Belfast Intl-CWL Cardiff Wales
23h 45m2 stops Manchester Dublin
£116Multiple Airlines
Sun, 13 Sep - Sun, 20 Sep
Multiple Airlines Logo
22:50 - 18:55CWL  Cardiff Wales-BFS Belfast Intl
20h 05m2 stops Dublin Edinburgh Turnhouse
Multiple Airlines Logo
21:55 - 22:50BFS  Belfast Intl-CWL Cardiff Wales
24h 55m2 stops Manchester Dublin
£118Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
07:30 - 09:35CWL  Cardiff Wales-BFS Belfast Intl
26h 05m2 stops Dublin Manchester
Multiple Airlines Logo
07:35 - 22:50BFS  Belfast Intl-CWL Cardiff Wales
15h 15m2 stops Manchester Dublin
£119Multiple Airlines
Sat, 19 Sep - Tue, 22 Sep
Multiple Airlines Logo
16:55 - 07:50CWL  Cardiff Wales-BFS Belfast Intl
14h 55m1 stop Alicante
Multiple Airlines Logo
14:50 - 07:20BFS  Belfast Intl-CWL Cardiff Wales
16h 30m2 stops London Stansted Dublin
£123Multiple Airlines
Thu, 24 Sep - Thu, 1 Oct
Multiple Airlines Logo
22:50 - 19:30CWL  Cardiff Wales-BFS Belfast Intl
20h 40m2 stops Dublin Manchester
Multiple Airlines Logo
09:15 - 07:20BFS  Belfast Intl-CWL Cardiff Wales
22h 05m2 stops London Stansted Dublin
£123Multiple Airlines
Thu, 24 Sep - Thu, 1 Oct

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Customise your flight search to find flights from Cardiff to Belfast Intl Airport 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 13 August 2026.
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

Wed 16/9

23:50-19:15

2 stops19h 25m

Belfast Intl

Tue 29/9

07:35-22:50

2 stops15h 15m

£94

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Mon 28/9

22:10-12:15

2 stops14h 05m

Belfast Intl

Wed 30/9

07:30-23:25

2 stops15h 55m

£104
Fastest return journey

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Mon 21/9

22:10-10:00

2 stops11h 50m

Belfast Intl

Thu 24/9

12:45-22:25

2 stops9h 40m

£105

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Tue 13/10

23:15-23:20

2 stops24h 05m

Belfast Intl

Fri 16/10

08:55-06:55

2 stops22h 00m

£110

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 10/9

22:50-18:55

2 stops20h 05m

Belfast Intl

Thu 17/9

14:50-22:25

2 stops7h 35m

£114

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Sun 13/9

21:45-18:25

2 stops20h 40m

Belfast Intl

Sun 20/9

22:00-21:45

2 stops23h 45m

£116

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 1/10

22:50-18:55

2 stops20h 05m

Belfast Intl

Mon 5/10

21:55-22:50

2 stops24h 55m

£118

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Sat 19/9

07:30-09:35

2 stops26h 05m

Belfast Intl

Tue 22/9

07:35-22:50

2 stops15h 15m

£119

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 24/9

16:55-07:50

1 stop14h 55m

Belfast Intl

Thu 1/10

14:50-07:20

2 stops16h 30m

£123

CardiffBelfast

CWL Cardiff Wales - BFS Belfast Intl

CWLBFS

Cardiff Wales

Thu 24/9

22:50-19:30

2 stops20h 40m

Belfast Intl

Thu 1/10

09:15-07:20

2 stops22h 05m

£123

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 Intl Airport

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 Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from £124 to £148.
The lowest price recently found on this route was £94.

What is the cheapest month to fly to Belfast Intl Airport?

The month of October is, on average, the cheapest month to fly to Belfast Intl Airport from Cardiff, with most prices found around £110. If you’re not able to fly to Belfast Intl Airport in October, then December is your next best option. Flight prices from Cardiff to Belfast Intl Airport during December average around £118.

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

You are more likely to see cheaper flights to Belfast Intl Airport from Cardiff when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast Intl Airport for around £128 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast Intl Airport from Cardiff for as low as £76 on momondo.

How have Cardiff to Belfast Intl Airport flight prices changed over time?

As of August 2026, prices for Cardiff to Belfast Intl Airport flights are approximately 30% more expensive when compared to flights at the same time last year.

When to book flights from Cardiff to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Cardiff to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Cardiff to Belfast Intl Airport (CWL to BFS) flight deals and tips

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

Fastest flight time

1h 20m

Direct flights

None
The fastest flight from Cardiff to Belfast Intl Airport takes 1h 20m
There are no direct flights from Cardiff to Belfast Intl Airport. There are no popular flight routes from Cardiff to Belfast Intl Airport.
Search flight deals

Frequently asked questions about flying from Cardiff to Belfast Intl Airport

  • How far is Cardiff Wales to Belfast Intl by plane?

    Cardiff Wales and Belfast Intl are 252.9 mi apart from one another. By plane, this route typically takes 1h 20m.

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

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

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

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

    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 Intl Airport.

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

    The required travel and health documents for your Belfast Intl Airport 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 Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Cardiff to Belfast Intl Airport?

Best airlines flying from Cardiff to Belfast Intl Airport

Compare and see reviews for airlines that fly from Cardiff to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £60Free CancellationRating
6.9
1,923 reviews
Search easyJet flights
Aer LingusPriceFrom £95Free CancellationRating
7.3
1,700 reviews
Search Aer Lingus flights

Travelling to a place near Belfast?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Cardiff to Belfast. momondo saves you time and could save you money on your trip.

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

Flights from Cardiff to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Cardiff and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Cardiff to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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