How often are flights from Ireland to Brussels delayed?

Historically, on average around 14% of flights between Ireland and Brussels have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

How many flights depart from Ireland to Brussels on average per week?

The number of flights available between Ireland and Brussels is 32 per week as of December 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

What is the cheapest airline that flies from Ireland to Brussels?

Ryanair, Wideroe, and KLM are the most popular carriers operating from Ireland to Brussels

How many flights depart from Ireland to Brussels on average per day?

As of December 2025, there are 4 flights per day flying from Ireland to Brussels. The most common time of day flights depart is 06:00, with 60% of flights taking off at midday.

What is the most punctual flight time for Ireland to Brussels flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Ireland to Brussels flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

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

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

As of December 2025, there are 2 operators available to choose from for flights from Ireland to Brussels.

How old do you have to be to fly from Ireland to Brussels?

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.

What documentation or ID do you need to fly to Brussels?

The necessary travel and health documents for your Brussels 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.

£20 Cheap Flights from Ireland to Brussels in 2025/26

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Recent return flight deals from Ireland to Brussels

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15:10 - 17:55DUB-BRU

1h 45mdirect

18:30 - 19:15BRU-DUB

1h 45mdirect

£39Ryanair

Find Deal

Fri, 16 Jan - Fri, 23 Jan

13:20 - 21:15DUB-BRU

6h 55m1 stop

09:10 - 09:55BRU-DUB

1h 45mdirect

£64Multiple Airlines

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Wed, 14 Jan - Wed, 21 Jan

06:05 - 08:50DUB-BRU

1h 45mdirect

17:10 - 17:55BRU-DUB

1h 45mdirect

£83Ryanair

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Fri, 20 Mar - Sun, 22 Mar

10:10 - 18:35DUB-BRU

7h 25m1 stop

18:30 - 19:15BRU-DUB

1h 45mdirect

£85Ryanair

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Fri, 16 Jan - Fri, 23 Jan

15:30 - 18:15DUB-BRU

1h 45mdirect

21:55 - 07:30BRU-DUB

10h 35m1 stop

£92Multiple Airlines

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Thu, 5 Mar - Mon, 9 Mar

05:50 - 08:35DUB-BRU

1h 45mdirect

15:10 - 07:55BRU-DUB

17h 45m2 stops

£98Multiple Airlines

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Wed, 14 Jan - Wed, 21 Jan

15:10 - 17:55DUB-BRU

1h 45mdirect

09:50 - 10:35BRU-DUB

1h 45mdirect

£98Ryanair

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Fri, 27 Mar - Sun, 29 Mar

06:15 - 09:00DUB-BRU

1h 45mdirect

10:20 - 11:05BRU-DUB

1h 45mdirect

£108Ryanair

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Mon, 6 Apr - Thu, 9 Apr

06:05 - 08:50DUB-BRU

1h 45mdirect

20:50 - 21:35BRU-DUB

1h 45mdirect

£115Multiple Airlines

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Thu, 18 Dec - Sun, 21 Dec

06:05 - 08:50DUB-BRU

1h 45mdirect

16:10 - 16:50BRU-DUB

1h 40mdirect

£116Multiple Airlines

Find Deal

Fri, 19 Dec - Sun, 21 Dec

Ryanair flights from Ireland to Brussels

Our best Ryanair deals on Ireland to Brussels flight tickets

Ryanair

16 Jan

DUB15:10Dublin

1h 45m

BRU17:55Brussels Bruxelles-National

23 Jan

BRU18:30Brussels Bruxelles-National

1h 45m

DUB19:15Dublin

£39

Find similar

Ryanair

11 Dec

DUB06:05Dublin

1h 45m

BRU08:50Brussels Bruxelles-National

16 Dec

BRU09:50Brussels Bruxelles-National

1h 45m

DUB10:35Dublin

£49

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Ryanair

9 Dec

DUB06:25Dublin

1h 45m

BRU09:10Brussels Bruxelles-National

11 Dec

BRU09:25Brussels Bruxelles-National

1h 45m

DUB10:10Dublin

£61

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KLM flights from Ireland to Brussels

Our best KLM deals on Ireland to Brussels flight tickets

KLM

18 Dec

DUB13:25Dublin

17h 10m

1 stop

BRU07:35Brussels Bruxelles-National

21 Dec

BRU14:45Brussels Bruxelles-National

18h 20m

1 stop

DUB08:05Dublin

£149

Find similar

KLM

31 Jan

DUB17:15Dublin

4h 05m

1 stop

BRU22:20Brussels Bruxelles-National

1 Feb

BRU10:45Brussels Bruxelles-National

6h 35m

1 stop

DUB16:20Dublin

£150

Find similar

KLM

30 Jan

DUB17:15Dublin

4h 05m

1 stop

BRU22:20Brussels Bruxelles-National

1 Feb

BRU10:45Brussels Bruxelles-National

6h 35m

1 stop

DUB16:20Dublin

£160

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Route

Depart

Return

Price

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 16/1

15:10-17:55

Nonstop1h 45m

Brussels Bruxelles-National

Fri 23/1

18:30-19:15

Nonstop1h 45m

£39

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 14/1

13:20-21:15

1 stop6h 55m

Brussels Bruxelles-National

Wed 21/1

09:10-09:55

Nonstop1h 45m

£64

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 20/3

06:05-08:50

Nonstop1h 45m

Brussels Bruxelles-National

Sun 22/3

17:10-17:55

Nonstop1h 45m

£83

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 16/1

10:10-18:35

1 stop7h 25m

Brussels Bruxelles-National

Fri 23/1

18:30-19:15

Nonstop1h 45m

£85

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 5/3

15:30-18:15

Nonstop1h 45m

Brussels Bruxelles-National

Mon 9/3

21:55-07:30

1 stop10h 35m

£92

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 14/1

05:50-08:35

Nonstop1h 45m

Brussels Bruxelles-National

Wed 21/1

15:10-07:55

2 stops17h 45m

£98

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 27/3

15:10-17:55

Nonstop1h 45m

Brussels Bruxelles-National

Sun 29/3

09:50-10:35

Nonstop1h 45m

£98

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 6/4

06:15-09:00

Nonstop1h 45m

Brussels Bruxelles-National

Thu 9/4

10:20-11:05

Nonstop1h 45m

£108

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 18/12

06:05-08:50

Nonstop1h 45m

Brussels Bruxelles-National

Sun 21/12

20:50-21:35

Nonstop1h 45m

£115

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 19/12

06:05-08:50

Nonstop1h 45m

Brussels Bruxelles-National

Sun 21/12

16:10-16:50

Nonstop1h 40m

£116

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How to get the cheapest flight ticket from Ireland to Brussels

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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Brussels?

In general, January is the cheapest month to fly from Ireland to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £52. If you are unable to visit Brussels during the month of January, then departing from Ireland during the month September is also very affordable. Most momondo users find prices during this month for around £58.

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

Our data shows that Sunday is the least expensive day to fly to Brussels. Tickets to fly out on this day can be as low as £46. On the other hand, Saturday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £90.

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

According to our data, the cheapest time of day to fly to Brussels is in the afternoon. momondo users have found flights departing from Ireland to Brussels in the afternoon for as low as £67. 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 evening is when there is more demand to fly to Brussels, so prices are often more expensive at around £75 per ticket.

What is the cheapest Ireland to Brussels flight route?

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

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

You are more likely to see cheaper flights to Brussels from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around £81 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Ireland for as low as £64 on momondo.

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

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

Cheap Ireland to Brussels flight deals and tips

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

Fastest flight time	1h 35m
Direct flights	Tue, Thu, Fri, Sat and Sun
Airports in Brussels	1 airport

The fastest flight from Ireland to Brussels takes 1h 35m

Direct flights go from Ireland to Brussels on Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights..

There is 1 airport near Brussels: Brussels Bruxelles-National (BRU)

Search flight deals

When did momondo last update prices for flights from Ireland to Brussels?
Prices for flights from Ireland to Brussels are refreshed on a daily basis.
How many operators does momondo search for flights from Ireland to Brussels?
As of December 2025, there are 2 operators available to choose from for flights from Ireland to Brussels.
How old do you have to be to fly from Ireland to Brussels?
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.
What documentation or ID do you need to fly to Brussels?
The necessary travel and health documents for your Brussels 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.

Best airlines flying from Ireland to Brussels

Compare and see reviews for airlines that fly from Ireland to Brussels with momondo

Airline	Rating	Free Cancellation	Price
Ryanair	PriceFrom £29	Free Cancellation	Rating 6.8 5,211 reviews		Search Ryanair flights
Aer Lingus	PriceFrom £54	Free Cancellation	Rating 7.2 1,384 reviews		Search Aer Lingus flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Brussels . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Brussels from Ireland which offer a flexible booking policy as well as other useful filters and features.

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

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 Brussels from Ireland.

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 trip

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Brussels Bruxelles-National Airport

Charleroi Brussels Airport

Cheap flights from Ireland to Brussels from £20

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 15/1. 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

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Ryanair flights from Ireland to Brussels

Our best Ryanair deals on Ireland to Brussels flight tickets

KLM flights from Ireland to Brussels

Our best KLM deals on Ireland to Brussels flight tickets

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How to get the cheapest flight ticket from Ireland to Brussels

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?

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

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

What is the cheapest Ireland to Brussels flight route?

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

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

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

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

What is the cheapest airline that flies from Ireland to Brussels?

Ryanair, Wideroe, and KLM are the most popular carriers operating from Ireland to Brussels

How often are flights from Ireland to Brussels delayed?

Historically, on average around 14% of flights between Ireland and Brussels have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

What is the most punctual flight time for Ireland to Brussels flights?

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Ireland to Brussels flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

How many flights depart from Ireland to Brussels on average per day?

As of December 2025, there are 4 flights per day flying from Ireland to Brussels. The most common time of day flights depart is 06:00, with 60% of flights taking off at midday.

How many flights depart from Ireland to Brussels on average per week?

The number of flights available between Ireland and Brussels is 32 per week as of December 2025. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

Cheap Ireland to Brussels flight deals and tips

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

Fastest flight time

Direct flights

Airports in Brussels

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

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

How old do you have to be to fly from Ireland to Brussels?

What documentation or ID do you need to fly to Brussels?

Best airlines flying from Ireland to Brussels

Compare and see reviews for airlines that fly from Ireland to Brussels with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Brussels 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels