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Cheap flights from Cardiff to Brussels from £56

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BRU
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Cardiff to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Brussels (BR1). 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 16 September 2025.

Round-trip from

£117

One-way from

£56

Popular in

October

Cheapest in

January

Average price

£271
Ryanair
  • Ryanair
  • 9/10-13/10
  • 2 total stops
  • 11h 00m total
  • Cardiff to Brussels
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Ryanair
  • Ryanair
  • 10/10
  • 1 total stop
  • 6h 45m total
  • Cardiff to Brussels
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Cardiff to Brussels

Cheapest flights from Cardiff to Brussels
Explore the most affordable flight options available from Cardiff to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 9/1007:55CWL - BRU
1 stop6h 45mRyanair
Mon 13/1009:30BRU - CWL
1 stop4h 15mRyanair
Deal found 15/9£117
Fri 10/1012:25CWL - BRU
1 stop6h 45mRyanair
Mon 13/1009:30BRU - CWL
1 stop4h 15mRyanair
Deal found 15/9£121
Fri 10/1012:25CWL - BRU
2 stops20h 20mMultiple Airlines
Mon 13/1009:30BRU - CWL
1 stop4h 15mMultiple Airlines
Deal found 15/9£143
Sun 5/1017:20CWL - BRU
2 stops22h 00mMultiple Airlines
Tue 7/1010:00BRU - CWL
1 stop6h 55mMultiple Airlines
Deal found 14/9£146
Tue 28/1021:45CWL - BRU
1 stop10h 50mMultiple Airlines
Tue 4/1121:55BRU - CWL
2 stops18h 35mMultiple Airlines
Deal found 13/9£150
Fri 10/1012:25CWL - CRL
1 stop9h 10mRyanair
Mon 13/1018:55CRL - CWL
2 stops22h 00mRyanair
Deal found 15/9£157
Sun 5/1011:00CWL - BRU
1 stop9h 00mRyanair
Tue 7/1010:00BRU - CWL
1 stop6h 55mRyanair
Deal found 14/9£167
Thu 9/1020:20CWL - CRL
2 stops22h 15mMultiple Airlines
Mon 13/1018:55CRL - CWL
2 stops22h 00mMultiple Airlines
Deal found 15/9£171
Tue 16/916:20CWL - BRU
1 stop4h 20mMultiple Airlines
Mon 22/922:15BRU - CWL
2 stops18h 40mMultiple Airlines
Deal found 14/9£180
Tue 16/916:20CWL - BRU
1 stop4h 20mRyanair
Mon 22/909:30BRU - CWL
1 stop4h 15mRyanair
Deal found 14/9£195
Tue 16/916:20CWL - CRL
2 stops16h 30mRyanair
Mon 22/920:25CRL - CWL
2 stops20h 30mRyanair
Deal found 14/9£197
Tue 16/916:20CWL - CRL
2 stops16h 30mMultiple Airlines
Mon 22/912:10CRL - CWL
3 stops28h 45mMultiple Airlines
Deal found 14/9£223

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Brussels 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 16 September 2025.
Use the filters below to find and compare flights from Cardiff to Brussels that are best for you.

Fly from

Cardiff

Fly to

Brussels

Route

Depart

Return

Price

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Thu 9/10

07:55-15:40

1 stop6h 45m

Brussels Bruxelles-National

Mon 13/10

09:30-12:45

1 stop4h 15m

£117

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Fri 10/10

12:25-20:10

1 stop6h 45m

Brussels Bruxelles-National

Mon 13/10

09:30-12:45

1 stop4h 15m

£121

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Fri 10/10

12:25-09:45

2 stops20h 20m

Brussels Bruxelles-National

Mon 13/10

09:30-12:45

1 stop4h 15m

£143

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Sun 5/10

17:20-16:20

2 stops22h 00m

Brussels Bruxelles-National

Tue 7/10

10:00-15:55

1 stop6h 55m

£146

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Tue 28/10

21:45-09:35

1 stop10h 50m

Brussels Bruxelles-National

Tue 4/11

21:55-15:30

2 stops18h 35m

£150

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Fri 10/10

12:25-22:35

1 stop9h 10m

Charleroi Brussels

Mon 13/10

18:55-15:55

2 stops22h 00m

£157

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Sun 5/10

11:00-21:00

1 stop9h 00m

Brussels Bruxelles-National

Tue 7/10

10:00-15:55

1 stop6h 55m

£167

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Thu 9/10

20:20-19:35

2 stops22h 15m

Charleroi Brussels

Mon 13/10

18:55-15:55

2 stops22h 00m

£171

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Fri 19/12

08:35-22:25

2 stops12h 50m

Charleroi Brussels

Mon 22/12

13:10-23:05

1 stop10h 55m

£258

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Sun 21/12

12:00-22:05

2 stops9h 05m

Charleroi Brussels

Tue 23/12

09:25-16:05

1 stop7h 40m

£311

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 28 results
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Best time to book a flight from Cardiff to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels 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 Brussels

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

Currently, January is the cheapest month in which you can book a flight from Cardiff to Brussels (average of £117). Flying from Cardiff to Brussels in July is currently the most expensive (average of £166). 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.

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated 16 September 2025.
Read reviews from past customers who have flown with KLM from Cardiff to Brussels. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,385 reviews
Check prices

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews
Check prices

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

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

    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 Brussels. 1 airline have flights from Cardiff Wales to Brussels on a regular basis. Booking flights from Cardiff Wales to Brussels should not be difficult; the airport handles an average of 0 outbound flights to Brussels per day.

  • How long is the flight from Cardiff to Brussels?

    There are many flights that can get you from Cardiff to Brussels in 6h 45m. Fly via Ryanair to get the fastest option. Cardiff and Brussels are separated by a distance of 341 mi.

  • What is the cheapest airline to fly from Cardiff to Brussels round-trip?

    According to our current data, KLM (£163), offers the cheapest pricing from Cardiff to Brussels. KLM is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Cardiff to Brussels that include hotel bookings?

    Yes. In addition to deals on Cardiff to Brussels flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Brussels.

  • Can I find deals for business class flights from Cardiff to Brussels?

    Yes. Cheapflights offers flight deals from Cardiff to Brussels 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 Brussels?

    Currently, January is the cheapest month in which you can book a flight from Cardiff to Brussels (average of £117). Flying from Cardiff to Brussels in July is currently the most expensive (average of £166). 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

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Top airline flying from Cardiff to Brussels

Discover the top airline that operate flights from Cardiff to Brussels. 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£152Average£243FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Brussels?

Deals for Cardiff to Brussels flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Brussels?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Brussels from Cardiff.

Can Cheapflights find flights from Cardiff to Brussels with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to Brussels, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Cardiff to Brussels become cheaper?

Yes! Start tracking prices for Cardiff to Brussels flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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