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Cheap flights from Cardiff to Brussels from £45

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 13/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BRU
17 Aug — 24 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Brussels

Enter your travel dates to find the best prices.

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 18 July 2026.

Wed 26/823:15
CWL
-
BRU
1 stop9h 20m
Ryanair
Thu 27/818:30
BRU
-
CWL
1 stop4h 55m
Ryanair
Deal found 15/7£99
Wed 12/823:15
CWL
-
CRL
2 stops22h 00m
Ryanair
Wed 19/808:00
CRL
-
CWL
2 stops15h 50m
Ryanair
Deal found 15/7£124
Wed 26/823:15
CWL
-
BRU
1 stop9h 20m
Multiple Airlines
Thu 27/822:15
BRU
-
CWL
2 stops25h 05m
Multiple Airlines
Deal found 15/7£140
Wed 12/823:15
CWL
-
BRU
1 stop9h 20m
Ryanair
Wed 19/818:00
BRU
-
CWL
1 stop5h 50m
Ryanair
Deal found 15/7£143
Wed 12/806:35
CWL
-
CRL
1 stop15h 05m
Multiple Airlines
Wed 19/809:20
CRL
-
CWL
1 stop14h 30m
Multiple Airlines
Deal found 15/7£176
Sun 30/821:45
CWL
-
BRU
1 stop10h 55m
Multiple Airlines
Sun 6/922:15
BRU
-
CWL
2 stops24h 30m
Multiple Airlines
Deal found 16/7£184
Sat 29/807:30
CWL
-
BRU
2 stops25h 45m
Multiple Airlines
Sat 5/919:25
BRU
-
CWL
2 stops14h 45m
Multiple Airlines
Deal found 15/7£244
Sat 29/817:35
CWL
-
BRU
1 stop3h 40m
KLM
Sat 5/906:20
BRU
-
CWL
1 stop3h 55m
KLM
Deal found 15/7£257
Wed 12/806:35
CWL
-
BRU
2 stops12h 20m
Multiple Airlines
Wed 19/818:00
BRU
-
CWL
1 stop5h 50m
Multiple Airlines
Deal found 15/7£259

Find 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 18 July 2026.

Round-trip from

£99

One-way from

£45

Popular in

July

Cheapest in

June

Average price

£1,359
Ryanair
  • Ryanair
  • 26/8-27/8
  • 2 total stops
  • 14h 15m total
  • Cardiff to Brussels
Search Deals
Ryanair
  • Ryanair
  • 13/10
  • 1 total stop
  • 9h 40m total
  • Cardiff to Brussels
Search Deals
Highest demand for flights based on searches. 37% potential increase in price (£155 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 48% potential price decrease (£84 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 18 July 2026.
Use the filters below to find and compare flights from Cardiff to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Wed 26/8

23:15-09:35

1 stop9h 20m

Brussels Bruxelles-National

Thu 27/8

18:30-22:25

1 stop4h 55m

£99

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Wed 12/8

23:15-22:15

2 stops22h 00m

Charleroi Brussels

Wed 19/8

08:00-22:50

2 stops15h 50m

£124

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Wed 26/8

23:15-09:35

1 stop9h 20m

Brussels Bruxelles-National

Thu 27/8

22:15-22:20

3 stops25h 05m

£170

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Wed 12/8

06:35-22:40

1 stop15h 05m

Charleroi Brussels

Wed 19/8

09:20-22:50

1 stop14h 30m

£176

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Sun 30/8

21:45-09:40

1 stop10h 55m

Brussels Bruxelles-National

Sun 6/9

22:15-21:45

2 stops24h 30m

£184
Fastest return journey

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Sat 29/8

17:35-22:15

1 stop3h 40m

Brussels Bruxelles-National

Sat 5/9

06:20-09:15

1 stop3h 55m

£257
Cheapest one-way

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Tue 13/10

23:15-09:55

1 stop9h 40m

£45
Fastest single journey

CardiffBrussels

CWL - CRL

CWLCRL

Cardiff Wales

Tue 13/10

23:15-08:25

1 stop8h 10m

£47

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Thu 12/11

17:05-12:40

1 stop18h 35m

£101

CardiffBrussels

CWL - BRU

CWLBRU

Cardiff Wales

Thu 12/11

17:05-21:10

2 stops27h 05m

£125

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

No data available for this route at this time. Please check back soon.

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 18 July 2026.
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
1,541 reviews
Check prices

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.8
Good
1,541 reviews
KLM
7.8
Good
1,541 reviews
Check prices

Food

7.3

Comfort

7.7

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 3h 40m. Fly via Ryanair or KLM to get the fastest option. Cardiff and Brussels are separated by a distance of 341 mi. This flight may include one or multiple stops.

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

    According to our current data, KLM (£220), offers the cheapest pricing from Cardiff to Brussels. KLM is priced at 36% 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.

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 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 18 July 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£220Average£274FlexibilityNo 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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