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Cheap flights from Ireland to Brussels from £15

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BRU
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags

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 13 January 2026.

Round-trip from

£31

One-way from

£15

Popular in

April

Cheapest in

January

Average price

£48
Ryanair
  • Ryanair
  • 23/2-24/2
  • Nonstop
  • 3h 30m total
  • Ireland to Brussels
Search Deals
Ryanair
  • Ryanair
  • 10/2
  • Nonstop
  • 1h 45m total
  • Ireland to Brussels
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£4 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals from Ireland to Brussels

Enter your travel dates to find the best prices.

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 13 January 2026.

Mon 23/206:20
DUB
-
BRU
Nonstop1h 45m
Ryanair
Tue 24/218:25
BRU
-
DUB
Nonstop1h 45m
Ryanair
Deal found 12/1£31
Mon 9/206:20
DUB
-
BRU
Nonstop1h 45m
Ryanair
Tue 10/218:25
BRU
-
DUB
Nonstop1h 45m
Ryanair
Deal found 11/1£33
Sat 17/105:45
DUB
-
BRU
Nonstop1h 45m
Ryanair
Sun 18/109:40
BRU
-
DUB
Nonstop1h 45m
Ryanair
Deal found 12/1£43
Wed 14/105:50
DUB
-
BRU
Nonstop1h 45m
Ryanair
Wed 14/117:00
BRU
-
DUB
Nonstop1h 45m
Ryanair
Deal found 11/1£56
Mon 9/206:20
DUB
-
BRU
Nonstop1h 45m
Multiple Airlines
Tue 10/215:10
BRU
-
DUB
1 stop8h 50m
Multiple Airlines
Deal found 11/1£77
Wed 24/614:40
DUB
-
BRU
Nonstop1h 45m
Ryanair
Mon 29/609:35
BRU
-
DUB
Nonstop1h 45m
Ryanair
Deal found 11/1£80
Sat 17/109:35
DUB
-
BRU
1 stop12h 45m
Multiple Airlines
Sun 18/109:40
BRU
-
DUB
Nonstop1h 45m
Multiple Airlines
Deal found 12/1£108
Wed 24/621:05
DUB
-
BRU
1 stop10h 20m
Multiple Airlines
Mon 29/609:35
BRU
-
DUB
Nonstop1h 45m
Multiple Airlines
Deal found 11/1£114
Wed 14/113:40
DUB
-
BRU
Nonstop1h 45m
Multiple Airlines
Wed 14/121:55
BRU
-
DUB
1 stop11h 05m
Multiple Airlines
Deal found 11/1£126

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 13 January 2026.
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 23/2

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Tue 24/2

18:25-19:10

Nonstop1h 45m

£31

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 9/2

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Tue 10/2

18:25-19:10

Nonstop1h 45m

£33

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 24/6

14:40-17:25

Nonstop1h 45m

Brussels Bruxelles-National

Mon 29/6

09:35-10:20

Nonstop1h 45m

£80

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 24/6

21:05-08:25

1 stop10h 20m

Brussels Bruxelles-National

Mon 29/6

09:35-10:20

Nonstop1h 45m

£114

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 25/5

19:50-10:15

1 stop13h 25m

Brussels Bruxelles-National

Tue 26/5

18:55-10:55

1 stop17h 00m

£140

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 2/2

19:05-09:40

1 stop13h 35m

Brussels Bruxelles-National

Mon 9/2

11:15-19:35

1 stop9h 20m

£146

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 20/3

19:05-09:40

1 stop13h 35m

Brussels Bruxelles-National

Mon 23/3

19:20-10:45

1 stop16h 25m

£146

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 17/4

19:50-10:15

1 stop13h 25m

Brussels Bruxelles-National

Sun 19/4

20:30-11:50

1 stop16h 20m

£148

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 22/5

19:05-09:40

1 stop13h 35m

Brussels Bruxelles-National

Sun 24/5

21:20-10:55

1 stop14h 35m

£148

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 18/4

20:00-10:15

1 stop13h 15m

Brussels Bruxelles-National

Fri 24/4

05:45-18:20

1 stop13h 35m

£149

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 21 results
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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, October is the cheapest month in which you can book a flight from Ireland to Brussels (average of £15). Flying from Ireland to Brussels in December is currently the most expensive (average of £49). 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 13 January 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from Ireland to Brussels by exploring options for tickets in the evening.

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 13 January 2026.

The most flights from IE0 to BR1 are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Ireland to Brussels delayed?

About 14% of weekly flights between Ireland and Brussels have experienced delays in the past year, with the average delay time being 105 minutes.

What is the most punctual flight time for Ireland to Brussels flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Brussels flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.

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 13 January 2026.
Check out reviews from past customers who have flown with Aer Lingus and Ryanair from Ireland to Brussels 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
1,435 reviews
Check prices

Boarding

7.4

Overall

7.2

Crew

8.0

Food

6.6

Comfort

7.1

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,435 reviews
Aer Lingus
7.2
Good
1,435 reviews
Check prices

Boarding

7.4

Overall

7.2

Crew

8.0

Food

6.6

Comfort

7.1

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Ryanair
6.9
Okay
5,242 reviews
Aer Lingus
7.2
Good
1,435 reviews
Check prices

Boarding

7.4

Overall

7.2

Crew

8.0

Food

6.6

Comfort

7.1

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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.

  • How long is the flight from Ireland to Brussels?

    Ryanair can get you from Ireland to Brussels in just under 1h 45m. Your travel time will be generally consistent. There are 486 mi between Ireland and Brussels. Most flights are nonstop.

  • 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: Buzz (100%), American Airlines (96%), Ryanair (92%).

  • What are the cheapest flights from Ireland to Brussels?

    The cheapest flight price from Ireland to Brussels is £42. On average you can expect to pay £67. The most popular route, (Dublin - Brussels Bruxelles-National), can usually be booked for £109.

  • 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, October is the cheapest month in which you can book a flight from Ireland to Brussels (average of £15). Flying from Ireland to Brussels in December is currently the most expensive (average of £49). 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

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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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Gatwick to Bruxelles-National flights
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Luton to Charleroi Brussels flights
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Luton to Antwerp flights
Stansted to Antwerp flights
Leeds to Bruxelles-National flights
Liverpool to Bruxelles-National flights
Glasgow Intl to Charleroi Brussels flights
Gatwick to Ostend flights
Southampton to Bruxelles-National flights
Birmingham to Antwerp flights
Belfast Intl to Bruxelles-National flights
Belfast City to Bruxelles-National flights
Leeds to Charleroi Brussels flights
Liverpool to Charleroi Brussels flights
Heathrow to Ostend flights
Inverness to Bruxelles-National flights
Edinburgh to Antwerp flights
Norwich to Bruxelles-National flights
Manchester to Ostend flights
Exeter to Bruxelles-National flights
Dublin to Bruxelles-National flights
Leeds to Antwerp flights
Aberdeen to Bruxelles-National flights
Grimsby to Bruxelles-National flights
Heathrow to Antwerp flights
Charles de Gaulle to Bruxelles-National 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 13 January 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£30Average£66FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£46Average£80FlexibilityNo 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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