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Cheap flights from Ireland to Belgium from €24

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 Belgium departing on 3/12. 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 Belgium

Recent return flight deals from Ireland to Belgium

Enter your travel dates to find the best prices.
Ryanair Logo
09:50 - 12:35DUB-CRL
1h 45mdirect
Ryanair Logo
13:10 - 13:55CRL-DUB
1h 45mdirect
€59Ryanair
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Fri, 21 Nov - Mon, 24 Nov
Ryanair Logo
06:25 - 09:10DUB-BRU
1h 45mdirect
Ryanair Logo
09:10 - 09:55BRU-DUB
1h 45mdirect
€61Ryanair
Find Deal
Tue, 18 Nov - Wed, 19 Nov
Ryanair Logo
06:25 - 09:10DUB-BRU
1h 45mdirect
Ryanair Logo
17:00 - 17:45BRU-DUB
1h 45mdirect
€62Ryanair
Find Deal
Tue, 9 Dec - Wed, 10 Dec
Aer Lingus Logo
15:30 - 18:15DUB-BRU
1h 45mdirect
Aer Lingus Logo
20:50 - 21:35BRU-DUB
1h 45mdirect
€95Aer Lingus
Find Deal
Thu, 18 Dec - Sun, 21 Dec
Multiple Airlines Logo
06:20 - 09:05DUB-BRU
1h 45mdirect
Multiple Airlines Logo
17:10 - 23:50BRU-DUB
7h 40m1 stop
€100Multiple Airlines
Find Deal
Mon, 1 Dec - Wed, 3 Dec
Multiple Airlines Logo
10:00 - 12:45DUB-CRL
1h 45mdirect
Multiple Airlines Logo
11:35 - 21:10CRL-DUB
10h 35m1 stop
€104Multiple Airlines
Find Deal
Mon, 8 Dec - Wed, 10 Dec
Aer Lingus Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Aer Lingus Logo
16:10 - 16:50BRU-DUB
1h 40mdirect
€129Aer Lingus
Find Deal
Fri, 20 Mar - Sun, 22 Mar
KLM Logo
06:00 - 14:35ORK-BRU
7h 35m1 stop
KLM Logo
15:05 - 22:35BRU-ORK
8h 30m1 stop
€248KLM
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Thu, 9 Apr - Mon, 13 Apr
KLM Logo
06:00 - 22:20ORK-BRU
15h 20m1 stop
KLM Logo
06:15 - 12:55BRU-ORK
7h 40m1 stop
€276KLM
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Fri, 13 Feb - Wed, 18 Feb
Lufthansa Logo
17:00 - 08:00ORK-BRU
14h 00m2 stops
Lufthansa Logo
19:40 - 16:15BRU-ORK
21h 35m2 stops
€341Lufthansa
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Thu, 9 Apr - Mon, 13 Apr

Aer Lingus flights from Ireland to Belgium

Our best Aer Lingus deals on Ireland to Belgium flight tickets
Aer Lingus
18 Dec
DUB15:30Dublin
1h 45m
BRU18:15Brussels Bruxelles-National
21 Dec
BRU20:50Brussels Bruxelles-National
1h 45m
DUB21:35Dublin
€95
Find similar
Aer Lingus
20 Mar
DUB06:50Dublin
1h 45m
BRU09:35Brussels Bruxelles-National
22 Mar
BRU16:10Brussels Bruxelles-National
1h 40m
DUB16:50Dublin
€129
Find similar
Aer Lingus
20 Nov
DUB06:50Dublin
1h 45m
BRU09:35Brussels Bruxelles-National
24 Nov
BRU10:15Brussels Bruxelles-National
1h 45m
DUB11:00Dublin
€140
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Ryanair flights from Ireland to Belgium

Our best Ryanair deals on Ireland to Belgium flight tickets
Ryanair
21 Nov
DUB09:50Dublin
1h 45m
CRL12:35Charleroi Brussels
24 Nov
CRL13:10Charleroi Brussels
1h 45m
DUB13:55Dublin
€59
Find similar
Ryanair
18 Nov
DUB06:25Dublin
1h 45m
BRU09:10Brussels Bruxelles-National
19 Nov
BRU09:10Brussels Bruxelles-National
1h 45m
DUB09:55Dublin
€61
Find similar
Ryanair
9 Dec
DUB06:25Dublin
1h 45m
BRU09:10Brussels Bruxelles-National
10 Dec
BRU17:00Brussels Bruxelles-National
1h 45m
DUB17:45Dublin
€62
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belgium 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 8 November 2025.
Use the filters below to find and compare flights from Ireland to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBrussels

DUB - CRL

DUBCRL

Dublin

Fri 21/11

09:50-12:35

Nonstop1h 45m

Charleroi Brussels

Mon 24/11

13:10-13:55

Nonstop1h 45m

€59

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Tue 18/11

06:25-09:10

Nonstop1h 45m

Brussels Bruxelles-National

Wed 19/11

09:10-09:55

Nonstop1h 45m

€61

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Tue 9/12

06:25-09:10

Nonstop1h 45m

Brussels Bruxelles-National

Wed 10/12

17:00-17:45

Nonstop1h 45m

€62

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 18/12

15:30-18:15

Nonstop1h 45m

Brussels Bruxelles-National

Sun 21/12

20:50-21:35

Nonstop1h 45m

€95

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 1/12

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Wed 3/12

17:10-23:50

1 stop7h 40m

€100

DublinBrussels

DUB - CRL

DUBCRL

Dublin

Mon 8/12

10:00-12:45

Nonstop1h 45m

Charleroi Brussels

Wed 10/12

11:35-21:10

1 stop10h 35m

€104

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 20/3

06:50-09:35

Nonstop1h 45m

Brussels Bruxelles-National

Sun 22/3

16:10-16:50

Nonstop1h 40m

€129

CorkBrussels

ORK - BRU

ORKBRU

Cork

Thu 9/4

06:00-14:35

1 stop7h 35m

Brussels Bruxelles-National

Mon 13/4

15:05-22:35

1 stop8h 30m

€248

CorkBrussels

ORK - BRU

ORKBRU

Cork

Fri 13/2

06:00-22:20

1 stop15h 20m

Brussels Bruxelles-National

Wed 18/2

06:15-12:55

1 stop7h 40m

€276

CorkBrussels

ORK - BRU

ORKBRU

Cork

Thu 9/4

17:00-08:00

2 stops14h 00m

Brussels Bruxelles-National

Mon 13/4

19:40-16:15

2 stops21h 35m

€341

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 Belgium from

How to get the cheapest flight ticket from Ireland to Belgium

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 Belgium?

The month of January is, on average, the cheapest month to fly to Belgium from Ireland, with most prices found around €64. If you don’t want to visit Belgium in January, then you should wait until September to fly from Ireland, when ticket prices are also cheap, with an average price of €67.

What is the cheapest day to depart on your flight to Belgium?

The cheapest day to depart from Ireland to Belgium is on a Wednesday when prices can be found for as low as €101. Flights from Ireland to Belgium on a Sunday will generally be more expensive and average around €158. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Belgium?

According to our data, the cheapest time of day to fly to Belgium is in the afternoon. momondo users have found flights departing from Ireland to Belgium in the afternoon for as low as €114. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Belgium, so prices are often more expensive at around €137 per ticket.

What is the cheapest Ireland to Belgium flight route?

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

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around €93 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Ireland for as low as €75 on momondo.

What cabin class options are available on Ireland to Belgium flights?

There is only 1 cabin class available to choose from on Ireland to Belgium 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 Belgium flights?

No. A direct flight is the cheapest option for a flight between Ireland to Belgium.

Cheap Ireland to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belgium

Best price found

€37

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Belgium

2 airports
The best one-way flight to Belgium from Ireland in the past 72 hours is €37. The best return flight deal from Ireland to Belgium found on momondo in the last 72 hours is €95.
The fastest flight from Ireland to Belgium takes 1h 40m
Direct flights go from Ireland to Belgium every day.
There are 2 airports near Belgium: Brussels Bruxelles-National (BRU), Charleroi Brussels (CRL)
Search flight deals

  • When did momondo last update prices for flights from Ireland to Belgium?

    Prices for flights from Ireland to Belgium are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ireland to Belgium?

  • How old do you have to be to fly from Ireland to Belgium?

    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 Belgium.

  • What documentation or ID do you need to fly to Belgium?

    The required travel and health documents for your Belgium trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belgium. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ireland to Belgium?

Best airlines flying from Ireland to Belgium

Compare and see reviews for airlines that fly from Ireland to Belgium with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €61Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ireland to Belgium for you.

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

Flights from Ireland to Belgium with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Belgium from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Belgium from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Belgium trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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