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Cheap flights from Ireland to Brussels from €22

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Brussels departing on 30/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Brussels

Recent return flight deals from Ireland to Brussels

Ryanair Logo
18:25 - 21:05DUB-BRU
1h 40mdirect
Ryanair Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
€32Ryanair
Find Deal
Thu, 18 Sep - Mon, 22 Sep
Ryanair Logo
06:25 - 09:05DUB-BRU
1h 40mdirect
Ryanair Logo
10:20 - 11:00BRU-DUB
1h 40mdirect
€34Ryanair
Find Deal
Sun, 28 Sep - Thu, 9 Oct
Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Logo
21:30 - 22:10BRU-DUB
1h 40mdirect
€61
Find Deal
Wed, 1 Oct - Wed, 1 Oct
Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Logo
09:45 - 10:25BRU-DUB
1h 40mdirect
€65
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Aer Lingus Logo
17:55 - 20:40DUB-BRU
1h 45mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€67Aer Lingus
Find Deal
Thu, 2 Oct - Mon, 6 Oct
Aer Lingus Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Aer Lingus Logo
16:10 - 16:50BRU-DUB
1h 40mdirect
€68Aer Lingus
Find Deal
Tue, 11 Nov - Fri, 14 Nov
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
10:30 - 16:25BRU-ORK
6h 55m1 stop
€150Lufthansa
Find Deal
Mon, 6 Oct - Mon, 13 Oct
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
10:30 - 16:25BRU-ORK
6h 55m1 stop
€151Lufthansa
Find Deal
Mon, 6 Oct - Mon, 13 Oct
KLM Logo
17:10 - 22:15ORK-BRU
4h 05m1 stop
KLM Logo
15:05 - 22:25BRU-ORK
8h 20m1 stop
€289KLM
Find Deal
Sat, 27 Sep - Sun, 28 Sep
KLM Logo
15:25 - 09:40ORK-BRU
17h 15m2 stops
KLM Logo
15:05 - 16:35BRU-ORK
26h 30m1 stop
€364KLM
Find Deal
Wed, 17 Sep - Sun, 21 Sep

Ryanair flights from Ireland to Brussels Bruxelles-National Airport

Our best Ryanair deals on Ireland to Brussels Bruxelles-National Airport flight tickets
Ryanair
18 Sept
DUB18:25Dublin
1h 40m
BRU21:05Brussels Bruxelles-National
22 Sept
BRU22:25Brussels Bruxelles-National
1h 40m
DUB23:05Dublin
€32
Find similar
Ryanair
28 Sept
DUB06:25Dublin
1h 40m
BRU09:05Brussels Bruxelles-National
9 Oct
BRU10:20Brussels Bruxelles-National
1h 40m
DUB11:00Dublin
€34
Find similar
Ryanair
2 Oct
DUB18:25Dublin
1h 40m
BRU21:05Brussels Bruxelles-National
13 Oct
BRU22:25Brussels Bruxelles-National
1h 40m
DUB23:05Dublin
€35
Find similar

Aer Lingus flights from Ireland to Brussels Bruxelles-National Airport

Our best Aer Lingus deals on Ireland to Brussels Bruxelles-National Airport flight tickets
Aer Lingus
2 Oct
DUB17:55Dublin
1h 45m
BRU20:40Brussels Bruxelles-National
6 Oct
BRU21:20Brussels Bruxelles-National
1h 35m
DUB21:55Dublin
€67
Find similar
Aer Lingus
11 Nov
DUB06:50Dublin
1h 45m
BRU09:35Brussels Bruxelles-National
14 Nov
BRU16:10Brussels Bruxelles-National
1h 40m
DUB16:50Dublin
€68
Find similar
Aer Lingus
26 Nov
DUB15:30Dublin
1h 45m
BRU18:15Brussels Bruxelles-National
29 Nov
BRU10:15Brussels Bruxelles-National
1h 45m
DUB11:00Dublin
€73
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Brussels Bruxelles-National Airport 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, momondo users made 13,528 searches. Data last updated 2 September 2025.
Use the filters below to find and compare flights from Ireland to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 18/9

18:25-21:05

Nonstop1h 40m

Brussels Bruxelles-National

Mon 22/9

22:25-23:05

Nonstop1h 40m

€32

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 28/9

06:25-09:05

Nonstop1h 40m

Brussels Bruxelles-National

Thu 9/10

10:20-11:00

Nonstop1h 40m

€34

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 1/10

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Wed 1/10

21:30-22:10

Nonstop1h 40m

€61

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 28/9

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Sun 5/10

09:45-10:25

Nonstop1h 40m

€65

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 2/10

17:55-20:40

Nonstop1h 45m

Brussels Bruxelles-National

Mon 6/10

21:20-21:55

Nonstop1h 35m

€67

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Tue 11/11

06:50-09:35

Nonstop1h 45m

Brussels Bruxelles-National

Fri 14/11

16:10-16:50

Nonstop1h 40m

€68

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 6/10

17:10-22:35

1 stop4h 25m

Brussels Bruxelles-National

Mon 13/10

10:30-16:25

1 stop6h 55m

€150

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 6/10

17:10-22:35

1 stop4h 25m

Brussels Bruxelles-National

Mon 13/10

10:30-16:25

1 stop6h 55m

€151

CorkBrussels

ORK - BRU

ORKBRU

Cork

Sat 27/9

17:10-22:15

1 stop4h 05m

Brussels Bruxelles-National

Sun 28/9

15:05-22:25

1 stop8h 20m

€289

CorkBrussels

ORK - BRU

ORKBRU

Cork

Wed 17/9

15:25-09:40

2 stops17h 15m

Brussels Bruxelles-National

Sun 21/9

15:05-16:35

1 stop26h 30m

€364

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Ireland to Brussels Bruxelles-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

In general, January is the cheapest month to fly from Ireland to Brussels Bruxelles-National Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €64. If you aren’t able to travel to Brussels Bruxelles-National Airport during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of €67.

What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?

The cheapest day to depart on your flight to Brussels Bruxelles-National Airport is on a Wednesday when prices can be found for as low as €84. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Brussels Bruxelles-National Airport on Monday is €354.

What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?

Our data shows that the cheapest Ireland to Brussels Bruxelles-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Brussels Bruxelles-National Airport in the afternoon for as low as €111. Flights to Brussels Bruxelles-National Airport are more costly at midday, with an average ticket price of €139. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ireland to Brussels Bruxelles-National flight route?

Fly from Dublin to Brussels Bruxelles-National for the best Ireland - Brussels Bruxelles-National flight prices

How far in advance should I book a flight to Brussels Bruxelles-National Airport?

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around €92 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Ireland for as low as €67 on momondo.

What cabin class options are available on Ireland to Brussels Bruxelles-National flights?

There is only 1 cabin class available to choose from on Ireland to Brussels Bruxelles-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Brussels Bruxelles-National Airport flights?

No. A direct flight is the cheapest option for a flight between Ireland to Brussels Bruxelles-National Airport.

Cheap Ireland to Brussels Bruxelles-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Brussels Bruxelles-National Airport

Best price found

€95

Fastest flight time

1h 30m

Direct flights

Every day
The best flight deal from Ireland to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is €95
The fastest flight from Ireland to Brussels Bruxelles-National Airport takes 1h 30m
Direct flights go from Ireland to Brussels Bruxelles-National Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Brussels Bruxelles-National Airport?

    Prices for flights from Ireland to Brussels Bruxelles-National Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ireland to Brussels Bruxelles-National Airport?

  • How old do you have to be to fly from Ireland to Brussels Bruxelles-National Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Brussels Bruxelles-National Airport.

  • What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

    The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Brussels Bruxelles-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ireland to Brussels Bruxelles-National Airport?

Best airlines flying from Ireland to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Ireland to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €59Free CancellationRating
7.2
1,247 reviews
Search Aer Lingus flights

Travelling to a place near Brussels?

Book flights to Brussels if you plan to visit one of these locations
Bruges
Ghent
Leuven
Aalst
Namur
Charleroi
Spa
Oostkamp

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Brussels?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Brussels. momondo saves you time and could save you money on your trip.

Can I find flights from Ireland to Brussels with flexible booking policies on momondo?

Yes. All flights to Brussels from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Brussels?

momondo helps you find the best flight between Ireland and Brussels by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ireland to Brussels right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ireland to Brussels flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Brussels Bruxelles-National Airport trip

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