Cheap flights from Ireland to Belgium 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 Belgium 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 Belgium

Recent return flight deals from Ireland to Belgium

Ryanair Logo
18:25 - 21:05DUB-BRU
1h 40mdirect
Ryanair Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
£28Ryanair
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
£29Ryanair
Find Deal
Thu, 9 Oct - Tue, 14 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
£82Aer Lingus
Find Deal
Wed, 15 Oct - Fri, 17 Oct
Multiple Airlines Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Multiple Airlines Logo
16:45 - 17:30BRU-DUB
1h 45mdirect
£87Multiple Airlines
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
£95Aer Lingus
Find Deal
Sun, 28 Sep - Mon, 29 Sep
Multiple Airlines Logo
08:50 - 07:35DUB-BRU
21h 45m1 stop
Multiple Airlines Logo
16:45 - 17:30BRU-DUB
1h 45mdirect
£117Multiple Airlines
Find Deal
Sat, 1 Nov - Sat, 8 Nov
KLM Logo
08:50 - 14:15DUB-BRU
4h 25m1 stop
KLM Logo
08:05 - 12:40BRU-DUB
5h 35m1 stop
£145KLM
Find Deal
Mon, 16 Feb - Wed, 25 Feb
KLM Logo
17:15 - 22:20DUB-BRU
4h 05m1 stop
KLM Logo
10:45 - 16:20BRU-DUB
6h 35m1 stop
£146KLM
Find Deal
Thu, 12 Feb - Thu, 19 Feb
Lufthansa Logo
10:50 - 17:15DUB-BRU
5h 25m1 stop
Lufthansa Logo
06:45 - 17:10BRU-DUB
11h 25m1 stop
£152Lufthansa
Find Deal
Thu, 6 Nov - Sun, 9 Nov
Lufthansa Logo
10:40 - 17:15DUB-BRU
5h 35m1 stop
Lufthansa Logo
09:35 - 16:55BRU-DUB
8h 20m1 stop
£155Lufthansa
Find Deal
Thu, 9 Oct - Mon, 13 Oct

Ryanair flights from Ireland to Belgium

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

KLM flights from Ireland to Belgium

Our best KLM deals on Ireland to Belgium flight tickets
KLM
16 Feb
DUB08:50Dublin
4h 25m
1 stop
BRU14:15Brussels Bruxelles-National
25 Feb
BRU08:05Brussels Bruxelles-National
5h 35m
1 stop
DUB12:40Dublin
KLM
12 Feb
DUB17:15Dublin
4h 05m
1 stop
BRU22:20Brussels Bruxelles-National
19 Feb
BRU10:45Brussels Bruxelles-National
6h 35m
1 stop
DUB16:20Dublin
KLM
12 Dec
DUB17:15Dublin
4h 05m
1 stop
BRU22:20Brussels Bruxelles-National
14 Dec
BRU10:45Brussels Bruxelles-National
6h 35m
1 stop
DUB16:20Dublin

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 279,928 searches. Data last updated 18 September 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 - BRU

DUBBRU

Dublin

Thu 9/10

18:25-21:05

Nonstop1h 40m

Brussels Bruxelles-National

Mon 13/10

22:25-23:05

Nonstop1h 40m

£28

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

£29

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 15/10

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Fri 17/10

21:20-21:55

Nonstop1h 35m

£82

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 1/11

06:50-09:35

Nonstop1h 45m

Brussels Bruxelles-National

Sat 8/11

16:45-17:30

Nonstop1h 45m

£87

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 28/9

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Mon 29/9

21:20-21:55

Nonstop1h 35m

£95

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 1/11

08:50-07:35

1 stop21h 45m

Brussels Bruxelles-National

Sat 8/11

16:45-17:30

Nonstop1h 45m

£116

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 16/2

08:50-14:15

1 stop4h 25m

Brussels Bruxelles-National

Wed 25/2

08:05-12:40

1 stop5h 35m

£145

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 12/2

17:15-22:20

1 stop4h 05m

Brussels Bruxelles-National

Thu 19/2

10:45-16:20

1 stop6h 35m

£146

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 6/11

10:50-17:15

1 stop5h 25m

Brussels Bruxelles-National

Sun 9/11

06:45-17:10

1 stop11h 25m

£152

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 9/10

10:40-17:15

1 stop5h 35m

Brussels Bruxelles-National

Mon 13/10

09:35-16:55

1 stop8h 20m

£155

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 £55. If you aren’t able to travel during the month of January, then book flights to Belgium from Ireland during September instead. Flights to Belgium in September, while not as cheap as those in January, still average around £57.

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

The cheapest day to depart from Ireland to Belgium is on a Sunday when prices can be found for as low as £48. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Belgium on Saturday is £88.

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

Our most recent data shows that the best time of day to fly to Belgium is in the afternoon. Flights from Ireland to Belgium during this time can be as low as £63. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £73 on average. Flights to Belgium from Ireland in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £77 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 £59 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.

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

£25

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Belgium

1 airport
The best one-way flight to Belgium from Ireland in the past 72 hours is £25. The best return flight deal from Ireland to Belgium found on momondo in the last 72 hours is £39.
The fastest flight from Ireland to Belgium takes 1h 30m
Direct flights go from Ireland to Belgium every day.
There is 1 airport near Belgium: Brussels Bruxelles-National (BRU)
  • 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 necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
RyanairPriceFrom £28Free CancellationRating
6.8
5,159 reviews
Search Ryanair flights
Aer LingusPriceFrom £46Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights

Why use momondo?

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

Finding the right flight to Belgium from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belgium quick and easy, saving you time and money.

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

Yes. All flights to Belgium 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 Belgium?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belgium from Ireland.

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

If you are not ready to book a flight from Ireland to Belgium now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belgium and let you know when they 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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1 adult
Sat 18/10
Sat 25/10

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