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Cheap flights from Cardiff to Belfast from £47

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BHD
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

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

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Cheapest flights from Cardiff to Belfast
Explore the most affordable flight options available from Cardiff to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2025.

Tue 11/1112:00CWL - BHD
Nonstop1h 25mAer Lingus
Thu 13/1106:45BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 7/11£108
Tue 16/1212:00CWL - BHD
Nonstop1h 25mAer Lingus
Sun 21/1210:10BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 7/11£122
Sat 6/1212:00CWL - BHD
Nonstop1h 25mAer Lingus
Sat 13/1210:10BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 8/11£124
Mon 29/1212:00CWL - BHD
Nonstop1h 25mAer Lingus
Wed 31/1210:10BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 8/11£136
Sat 22/1112:00CWL - BHD
Nonstop1h 25mAer Lingus
Wed 26/1110:10BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 7/11£147
Fri 5/1216:05CWL - BFS
1 stop16h 00mMultiple Airlines
Sun 7/1208:15BFS - CWL
1 stop9h 45mMultiple Airlines
Deal found 7/11£153
Fri 5/1208:35CWL - BHD
Nonstop1h 25mAer Lingus
Sun 7/1210:10BHD - CWL
Nonstop1h 20mAer Lingus
Deal found 7/11£166
Sat 6/1212:00CWL - BHD
Nonstop1h 25mMultiple Airlines
Sat 13/1218:00BHD - CWL
2 stops24h 00mMultiple Airlines
Deal found 8/11£166
Sat 22/1120:05CWL - BHD
2 stops16h 45mMultiple Airlines
Wed 26/1110:10BHD - CWL
Nonstop1h 20mMultiple Airlines
Deal found 7/11£170
Sat 6/1216:45CWL - BFS
2 stops16h 05mMultiple Airlines
Sat 13/1217:55BFS - CWL
2 stops24h 05mMultiple Airlines
Deal found 8/11£173
Tue 2/1216:45CWL - BFS
2 stops19h 35mMultiple Airlines
Thu 4/1219:45BFS - CWL
2 stops19h 55mMultiple Airlines
Deal found 7/11£176
Sat 22/1116:45CWL - BFS
2 stops16h 05mMultiple Airlines
Wed 26/1107:00BFS - CWL
2 stops8h 30mMultiple Airlines
Deal found 7/11£178

Cheap flight deals from Cardiff to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Belfast (BF1). 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 9 November 2025.

Round-trip from

£119

One-way from

£47

Popular in

December

Cheapest in

January

Average price

£128
Aer Lingus
  • Aer Lingus
  • 16/1-18/1
  • Nonstop
  • 2h 45m total
  • Cardiff to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 6/12
  • Nonstop
  • 1h 25m total
  • Cardiff to Belfast
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 9 November 2025.
Use the filters below to find and compare flights from Cardiff to Belfast that are best for you.

Fly from

Cardiff

Fly to

Belfast

Route

Depart

Return

Price

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 16/1

08:35-10:00

Nonstop1h 25m

Belfast City

Sun 18/1

10:10-11:30

Nonstop1h 20m

£119

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Sat 6/12

12:00-13:25

Nonstop1h 25m

Belfast City

Sat 13/12

10:10-11:30

Nonstop1h 20m

£124

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Mon 29/12

12:00-13:25

Nonstop1h 25m

Belfast City

Wed 31/12

10:10-11:30

Nonstop1h 20m

£136

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Sat 22/11

12:00-13:25

Nonstop1h 25m

Belfast City

Wed 26/11

10:10-11:30

Nonstop1h 20m

£147

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Sat 6/12

16:45-08:50

2 stops16h 05m

Belfast Intl

Sat 13/12

08:30-16:05

1 stop7h 35m

£153

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Fri 5/12

16:05-08:05

1 stop16h 00m

Belfast Intl

Sun 7/12

08:15-18:00

1 stop9h 45m

£153

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Fri 5/12

08:35-10:00

Nonstop1h 25m

Belfast City

Sun 7/12

10:10-11:30

Nonstop1h 20m

£166

CardiffBelfast

CWL - BHD

CWLBHD

Cardiff Wales

Sat 22/11

20:05-12:50

2 stops16h 45m

Belfast City

Wed 26/11

10:10-11:30

Nonstop1h 20m

£170

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Tue 2/12

16:45-12:20

2 stops19h 35m

Belfast Intl

Thu 4/12

19:45-15:40

2 stops19h 55m

£176

CardiffBelfast

CWL - BFS

CWLBFS

Cardiff Wales

Sat 22/11

16:45-08:50

2 stops16h 05m

Belfast Intl

Wed 26/11

07:00-15:30

2 stops8h 30m

£178

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 26 results
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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
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

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

Use this chart to determine the optimal time to book a return flight from Cardiff to Belfast. Price data was last updated on 7 November 2025.

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

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

Currently, December is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £15). Flying from Cardiff to Belfast in April 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 November 2025.

When flying from Cardiff to Belfast, 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 55% versus a flight in the morning.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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. Reviews last updated 9 November 2025.
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
7.2
Good
1,366 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Boarding

7.4

Food

6.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,366 reviews
Aer Lingus
7.2
Good
1,366 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Boarding

7.4

Food

6.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
easyJet
6.9
Okay
1,842 reviews
Aer Lingus
7.2
Good
1,366 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Boarding

7.4

Food

6.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

Related info for your journey

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

    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 25m. 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 £65. Another airline that can offer you cheap pricing is Aer Lingus. easyJet is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Cardiff to Belfast one-way?

    The cheapet airlines for a one-way flight from Cardiff to Belfast are Aer Lingus (£47), Ryanair (£80), and British Airways (£130).

  • 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, December is the cheapest month in which you can book a flight from Cardiff to Belfast (average of £15). Flying from Cardiff to Belfast in April 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Cardiff to Belfast

Discover the top 2 airlines that operate flights from Cardiff to Belfast. 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 9 November 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£65Average£98FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£88Average£121FlexibilityNo 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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