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Cheap flights from Ireland to Brussels from €18

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 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to Brussels

Recent return flight deals from Ireland to Brussels

Enter your travel dates to find the best prices.
Ryanair Logo
05:50 - 08:35
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:10 - 09:55
BRU
-
DUB
1h 45mdirect
€38Ryanair
Wed, 4 Mar - Wed, 11 Mar
Ryanair Logo
06:20 - 09:05
DUB
-
BRU
1h 45mdirect
Ryanair Logo
18:25 - 19:10
BRU
-
DUB
1h 45mdirect
€39Ryanair
Mon, 2 Mar - Tue, 3 Mar
Ryanair Logo
06:20 - 09:05
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€43Ryanair
Sun, 1 Mar - Mon, 2 Mar
Ryanair Logo
05:45 - 08:30
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€45Ryanair
Sat, 28 Feb - Mon, 2 Mar
Ryanair Logo
06:05 - 08:50
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€46Ryanair
Thu, 5 Mar - Mon, 9 Mar
Ryanair Logo
05:45 - 08:30
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€46Ryanair
Sat, 28 Feb - Mon, 2 Mar
Ryanair Logo
06:20 - 09:05
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€48Ryanair
Sun, 1 Mar - Sun, 8 Mar
Ryanair Logo
06:20 - 09:05
DUB
-
BRU
1h 45mdirect
Ryanair Logo
09:40 - 10:25
BRU
-
DUB
1h 45mdirect
€49Ryanair
Sun, 1 Mar - Mon, 2 Mar
Multiple Airlines Logo
21:25 - 08:55
ORK
-
BRU
10h 30m
1 stop
Multiple Airlines Logo
11:15 - 23:10
BRU
-
ORK
12h 55m
1 stop
€133Multiple Airlines
Mon, 9 Mar - Thu, 12 Mar
Multiple Airlines Logo
21:25 - 08:55
ORK
-
BRU
10h 30m
1 stop
Multiple Airlines Logo
08:45 - 20:55
BRU
-
ORK
13h 10m
1 stop
€139Multiple Airlines
Mon, 9 Mar - Mon, 23 Mar

Ryanair flights from Ireland to Brussels Bruxelles-National Airport

Our best Ryanair deals on Ireland to Brussels Bruxelles-National Airport flight tickets
Ryanair
4 Mar
DUB05:50Dublin
1h 45m
BRU08:35Brussels Bruxelles-National
11 Mar
BRU09:10Brussels Bruxelles-National
1h 45m
DUB09:55Dublin
€38
Ryanair
2 Mar
DUB06:20Dublin
1h 45m
BRU09:05Brussels Bruxelles-National
3 Mar
BRU18:25Brussels Bruxelles-National
1h 45m
DUB19:10Dublin
€39
Ryanair
1 Mar
DUB06:20Dublin
1h 45m
BRU09:05Brussels Bruxelles-National
2 Mar
BRU09:40Brussels Bruxelles-National
1h 45m
DUB10:25Dublin
€43

SWISS flights from Ireland to Brussels Bruxelles-National Airport

Our best SWISS deals on Ireland to Brussels Bruxelles-National Airport flight tickets
SWISS
26 Jun
ORK16:50Cork
24h 45m
1 stop
BRU18:35Brussels Bruxelles-National
29 Jun
BRU18:00Brussels Bruxelles-National
20h 05m
1 stop
ORK13:05Cork
€244
SWISS
26 Jun
ORK16:50Cork
24h 45m
1 stop
BRU18:35Brussels Bruxelles-National
29 Jun
BRU19:25Brussels Bruxelles-National
18h 40m
1 stop
ORK13:05Cork
€245

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 3 February 2026.
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

Wed 4/3

05:50-08:35

Nonstop1h 45m

Brussels Bruxelles-National

Wed 11/3

09:10-09:55

Nonstop1h 45m

€38

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 2/3

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Tue 3/3

18:25-19:10

Nonstop1h 45m

€39

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 1/3

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Mon 2/3

09:40-10:25

Nonstop1h 45m

€43

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 28/2

05:45-08:30

Nonstop1h 45m

Brussels Bruxelles-National

Mon 2/3

09:40-10:25

Nonstop1h 45m

€45

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 5/3

06:05-08:50

Nonstop1h 45m

Brussels Bruxelles-National

Mon 9/3

09:40-10:25

Nonstop1h 45m

€46

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 28/2

05:45-08:30

Nonstop1h 45m

Brussels Bruxelles-National

Mon 2/3

09:40-10:25

Nonstop1h 45m

€46

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 1/3

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Sun 8/3

09:40-10:25

Nonstop1h 45m

€48

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 1/3

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Mon 2/3

09:40-10:25

Nonstop1h 45m

€49

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 9/3

21:25-08:55

1 stop10h 30m

Brussels Bruxelles-National

Thu 12/3

11:15-23:10

1 stop12h 55m

€133

CorkBrussels

ORK - BRU

ORKBRU

Cork

Mon 9/3

21:25-08:55

1 stop10h 30m

Brussels Bruxelles-National

Mon 23/3

08:45-20:55

1 stop13h 10m

€139

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 €57. 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 €65.

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 Thursday when prices can be found for as low as €100. 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 €628.

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 €160. 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 €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

€99

Fastest flight time

1h 40m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Ireland in the past 72 hours is €99. The best return flight deal from Ireland to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is €88.
The fastest flight from Ireland to Brussels Bruxelles-National Airport takes 1h 40m
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
RyanairPriceFrom €41Free CancellationRating
6.9
5,259 reviews
Search Ryanair flights
Aer LingusPriceFrom €66Free CancellationRating
7.2
1,444 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
Namur
Aalst
Charleroi
Genk
Mechelen
Oostkamp
Spa

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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