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Cheap flights from Ireland to Brussels from €25

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 16/11. 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, 9 Oct - Mon, 13 Oct
Ryanair Logo
07:05 - 09:45DUB-BRU
1h 40mdirect
Ryanair Logo
22:20 - 23:00BRU-DUB
1h 40mdirect
€33Ryanair
Find Deal
Thu, 9 Oct - Tue, 14 Oct
Multiple Airlines Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Multiple Airlines Logo
17:10 - 17:55BRU-DUB
1h 45mdirect
€66Multiple Airlines
Find Deal
Thu, 6 Nov - Sun, 9 Nov
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€74Aer Lingus
Find Deal
Fri, 3 Oct - Mon, 6 Oct
Multiple Airlines Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Multiple Airlines Logo
09:45 - 10:25BRU-DUB
1h 40mdirect
€74Multiple Airlines
Find Deal
Fri, 3 Oct - Sun, 5 Oct
Aer Lingus Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Aer Lingus Logo
10:15 - 11:00BRU-DUB
1h 45mdirect
€76Aer Lingus
Find Deal
Sun, 7 Dec - Tue, 9 Dec
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
08:30 - 16:25BRU-ORK
8h 55m1 stop
€154Lufthansa
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
07:00 - 16:25BRU-ORK
10h 25m1 stop
€155Lufthansa
Find Deal
Mon, 13 Oct - Mon, 20 Oct
KLM Logo
06:00 - 07:35ORK-BRU
24h 35m1 stop
KLM Logo
08:05 - 10:45BRU-ORK
3h 40m1 stop
€267KLM
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Thu, 30 Oct - Thu, 6 Nov
KLM Logo
06:00 - 14:15ORK-BRU
7h 15m1 stop
KLM Logo
08:05 - 23:25BRU-ORK
16h 20m1 stop
€273KLM
Find Deal
Thu, 1 Jan - Wed, 7 Jan

Ryanair flights from Ireland to Brussels Bruxelles-National Airport

Our best Ryanair deals on Ireland to Brussels Bruxelles-National Airport flight tickets
Ryanair
9 Oct
DUB18:25Dublin
1h 40m
BRU21:05Brussels Bruxelles-National
13 Oct
BRU22:25Brussels Bruxelles-National
1h 40m
DUB23:05Dublin
€32
Find similar
Ryanair
9 Oct
DUB07:05Dublin
1h 40m
BRU09:45Brussels Bruxelles-National
14 Oct
BRU22:20Brussels Bruxelles-National
1h 40m
DUB23:00Dublin
€33
Find similar
Ryanair
2 Oct
DUB07:05Dublin
1h 40m
BRU09:45Brussels Bruxelles-National
6 Oct
BRU18:45Brussels Bruxelles-National
1h 40m
DUB19:25Dublin
€36
Find similar

KLM flights from Ireland to Brussels Bruxelles-National Airport

Our best KLM deals on Ireland to Brussels Bruxelles-National Airport flight tickets
KLM
26 Sept
DUB20:45Dublin
9h 45m
1 stop
BRU07:30Brussels Bruxelles-National
28 Sept
BRU15:05Brussels Bruxelles-National
8h 20m
1 stop
DUB22:25Dublin
€217
Find similar
KLM
30 Oct
ORK06:00Cork
24h 35m
1 stop
BRU07:35Brussels Bruxelles-National
6 Nov
BRU08:05Brussels Bruxelles-National
3h 40m
1 stop
ORK10:45Cork
€267
Find similar
KLM
18 Sept
DUB20:45Dublin
9h 45m
1 stop
BRU07:30Brussels Bruxelles-National
20 Sept
BRU06:10Brussels Bruxelles-National
11h 30m
1 stop
DUB16:40Dublin
€280
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 17 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 9/10

18:25-21:05

Nonstop1h 40m

Brussels Bruxelles-National

Mon 13/10

22:25-23:05

Nonstop1h 40m

€32

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 9/10

07:05-09:45

Nonstop1h 40m

Brussels Bruxelles-National

Tue 14/10

22:20-23:00

Nonstop1h 40m

€33

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 6/11

06:50-09:35

Nonstop1h 45m

Brussels Bruxelles-National

Sun 9/11

17:10-17:55

Nonstop1h 45m

€66

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 3/10

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Mon 6/10

21:20-21:55

Nonstop1h 35m

€74

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 3/10

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Sun 5/10

09:45-10:25

Nonstop1h 40m

€74

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 7/12

06:50-09:35

Nonstop1h 45m

Brussels Bruxelles-National

Tue 9/12

10:15-11:00

Nonstop1h 45m

€76

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 13/10

17:10-22:35

1 stop4h 25m

Brussels Bruxelles-National

Mon 20/10

08:30-16:25

1 stop8h 55m

€154

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 13/10

17:10-22:35

1 stop4h 25m

Brussels Bruxelles-National

Mon 20/10

07:00-16:25

1 stop10h 25m

€155

CorkBrussels

ORK - BRU

ORKBRU

Cork

Thu 30/10

06:00-07:35

1 stop24h 35m

Brussels Bruxelles-National

Thu 6/11

08:05-10:45

1 stop3h 40m

€267

CorkBrussels

ORK - BRU

ORKBRU

Cork

Thu 1/1

06:00-14:15

1 stop7h 15m

Brussels Bruxelles-National

Wed 7/1

08:05-23:25

1 stop16h 20m

€273

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

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 €63. 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 €66.

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 €87. 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 €211.

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 €110. Flights to Brussels Bruxelles-National Airport are more costly in the morning, with an average ticket price of €134. Departure times in the morning 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 €89 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 €68 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

€100

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 €100
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 €60Free CancellationRating
7.2
1,277 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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