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Cheap flights from Ireland to Brussels from £23

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BRU
29 Apr — 6 May1
1 adult

Cheap flight deals from Ireland to Brussels

Keep the following information in mind while searching for Ireland to Brussels flight deals. Data was last updated 24 April 2025.

Round-trip from

£35

One-way from

£23

Popular in

December

Cheapest in

January

Average price

£90
Ryanair
  • Ryanair
  • 6/5-7/5
  • Nonstop
  • 3h 20m total
  • Ireland to Brussels
Search Deals
Ryanair
  • Ryanair
  • 21/9
  • Nonstop
  • 1h 40m total
  • Ireland to Brussels
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£2 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Ireland to Brussels

Cheapest flights from Ireland to Brussels
Explore the most affordable flight options available from Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 April 2025.

Mon 16/606:30DUB - BRU
Nonstop1h 30mRyanair
Mon 23/609:30BRU - DUB
Nonstop1h 50mRyanair
Deal found 24/4£44
Mon 19/506:50DUB - BRU
Nonstop1h 50mAer Lingus
Wed 21/521:20BRU - DUB
Nonstop1h 35mAer Lingus
Deal found 24/4£61
Tue 3/612:40DUB - BRU
1 stop4h 50mMultiple Airlines
Mon 23/621:20BRU - DUB
Nonstop1h 35mMultiple Airlines
Deal found 24/4£123
Tue 3/619:05DUB - BRU
1 stop13h 35mScandinavian Airlines
Sun 8/620:30BRU - DUB
1 stop16h 20mScandinavian Airlines
Deal found 24/4£153
Wed 13/817:20DUB - BRU
1 stop3h 55mKLM
Sun 17/808:00BRU - DUB
1 stop5h 35mKLM
Deal found 24/4£157
Thu 8/505:55DUB - BRU
1 stop13h 45mLufthansa
Mon 12/506:45BRU - DUB
1 stop11h 10mLufthansa
Deal found 24/4£158
Thu 8/508:40DUB - BRU
1 stop4h 35mSWISS
Sun 11/520:05BRU - DUB
1 stop17h 05mSWISS
Deal found 24/4£162
Wed 13/809:00DUB - BRU
2 stops9h 10mAustrian Airlines
Sun 17/819:55BRU - DUB
2 stops22h 00mAustrian Airlines
Deal found 24/4£301
Fri 2/512:20DUB - BRU
2 stops20h 05mLOT
Sun 4/507:50BRU - DUB
2 stops35h 25mLOT
Deal found 24/4£599
Mon 23/600:01DUB - BRU
1 stop18h 04mAegean Airlines
Mon 30/611:15BRU - DUB
1 stop12h 50mAegean Airlines
Deal found 24/4£770

Cheapflights Fare Finder

Customise your flight search to find flights from Ireland 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 24 April 2025.
Use the filters below to find and compare flights from Ireland to Brussels that are best for you.

Fly from

Ireland

Fly to

Brussels

Route

Depart

Return

Price

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 16/6

06:30-09:00

Nonstop1h 30m

Brussels Bruxelles-National

Mon 23/6

09:30-10:20

Nonstop1h 50m

£44

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 19/5

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Wed 21/5

21:20-21:55

Nonstop1h 35m

£61

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Tue 3/6

12:40-18:30

1 stop4h 50m

Brussels Bruxelles-National

Mon 23/6

21:20-21:55

Nonstop1h 35m

£123

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Tue 3/6

19:05-09:40

1 stop13h 35m

Brussels Bruxelles-National

Sun 8/6

20:30-11:50

1 stop16h 20m

£153

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 13/8

17:20-22:15

1 stop3h 55m

Brussels Bruxelles-National

Sun 17/8

08:00-12:35

1 stop5h 35m

£157

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 8/5

05:55-17:30

1 stop10h 35m

Brussels Bruxelles-National

Mon 12/5

06:45-16:55

1 stop11h 10m

£158

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 8/5

08:40-14:15

1 stop4h 35m

Brussels Bruxelles-National

Sun 11/5

20:05-12:10

1 stop17h 05m

£162

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 13/8

09:00-19:10

2 stops9h 10m

Brussels Bruxelles-National

Sun 17/8

19:55-16:55

2 stops22h 00m

£301

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 23/6

00:01-19:05

1 stop18h 04m

Brussels Bruxelles-National

Mon 30/6

11:15-23:05

1 stop12h 50m

£770

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 21/9

06:25-09:05

Nonstop1h 40m

£23

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 16 results
1
2

Best time to book a flight from Ireland to Brussels

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

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

Currently, January is the cheapest month in which you can book a flight from Ireland to Brussels (average of £117). Flying from Ireland to Brussels in July is currently the most expensive (average of £172). 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 IE to BRU?

Find hourly flight availability from Ireland to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 April 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 21% on flights from Ireland to Brussels by exploring options for tickets in the afternoon.

Weekly flight availability from Ireland to Brussels

Explore weekly flight availability from Ireland to Brussels. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 24 April 2025.

The most flights from IE0 to BR1 are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Brussels by month

Plan your trip to Brussels by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Brussels ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. August is typically the driest time to visit Brussels when rainfall is around 40.0 mm.

Temperature in Brussels by month

Plan your trip to Brussels by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Brussels, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 3.0 C).

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 24 April 2025.
To help decide which airline to fly from Ireland to Brussels, see what other customers have to say about Aegean Airlines, KLM and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very Good
737 reviews
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,333 reviews
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.6
Good
780 reviews
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,582 reviews
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Scandinavian Airlines
7.3
Good
1,344 reviews
Aegean Airlines
8.1
Very Good
737 reviews
Check prices

Comfort

7.8

Crew

8.6

Boarding

7.8

Overall

8.1

Food

7.3

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from Ireland to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Ireland to Brussels one-way?

    £23 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Scandinavian Airlines and KLM, with prices starting from £66 and £76, respectively.

  • What are the most reliable airlines from Ireland to Brussels?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to Brussels on time: Aer Lingus (85%), American Airlines (84%), Qatar Airways (82%).

  • What are the cheapest flights from Ireland to Brussels?

    The cheapest flight price from Ireland to Brussels is £48. On average you can expect to pay £67. The most popular route, (Dublin - Brussels Bruxelles-National), can usually be booked for £110.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ireland to Brussels (average of £117). Flying from Ireland to Brussels in July is currently the most expensive (average of £172). 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.

Alternative routes for Ireland to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
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Liverpool to Charleroi Brussels flights

Top 2 airlines flying from Ireland to Brussels

Discover the top 2 airlines that operate flights from Ireland 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 24 April 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£73FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£53Average£82FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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 Ireland to Brussels?

Deals for Ireland 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 Ireland to Brussels?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Brussels.

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

Certainly. Search results for flights to Brussels from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Ireland 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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