How long is the flight from Ireland to Brussels?

Ryanair and KLM can get you from Ireland to Brussels in just under 1h 45m. Your travel time can differ by up to 2h 35m. There are 486 mi between Ireland and Brussels. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Brussels ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. August is typically the driest time to visit Brussels when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Brussels, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 3.0 C).

What are the cheapest flights from Ireland to Brussels?

The cheapest flight price from Ireland to Brussels is £74. On average you can expect to pay £136. The most popular route, (Dublin - Brussels Bruxelles-National), can usually be booked for £108.

What are the most reliable airlines from Ireland to Brussels?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to Brussels on time: Aer Lingus (81%), JetBlue (81%), American Airlines (79%).

Can I find deals for flights from Ireland to Brussels that include hotel bookings?

Yes. In addition to deals on Ireland to Brussels flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ireland to Brussels?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Brussels.

Can I find deals for business class flights from Ireland to Brussels?

Yes. Cheapflights offers flight deals from Ireland to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£13+ Cheap Flights from Ireland to Brussels

Cheap flight deals from Ireland to Brussels

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Ireland to Brussels
Explore the most affordable flight options available from Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Wed 30/907:10 -

Nonstop1h 45m

Wed 7/1010:30 -

Nonstop1h 45m

Deal found 1/9£35

Tue 6/1006:25 -

Nonstop1h 45m

Wed 21/1010:30 -

Nonstop1h 45m

Deal found 1/9£39

Tue 13/1006:25 -

Nonstop1h 45m

Tue 20/1019:45 -

Nonstop1h 45m

Deal found 29/8£44

Thu 15/1006:50 -

Nonstop1h 45m

Fri 16/1010:20 -

Nonstop1h 45m

Deal found 2/9£46

Fri 2/1006:35 -

Nonstop1h 45m

Mon 19/1020:00 -

Nonstop1h 45m

Deal found 29/8£47

Thu 5/1106:40 -

Nonstop1h 40m

Tue 10/1117:50 -

Nonstop1h 40m

Deal found 2/9£48

Thu 24/906:50 -

Nonstop1h 45m

Wed 30/910:30 -

Nonstop1h 45m

Deal found 31/8£53

Fri 9/1006:35 -

Nonstop1h 45m

Sun 11/1009:50 -

Nonstop1h 45m

Deal found 30/8£56

Tue 6/1006:25 -

Nonstop1h 45m

Mon 19/1009:35 -

Nonstop1h 45m

Deal found 31/8£56

Mon 9/1107:10 -

Nonstop1h 40m

Tue 10/1109:50 -

Nonstop1h 40m

Deal found 1/9£59

Find flight deals from Ireland to Brussels

Round-trip from	£35
One-way from	£13
Popular in	May
Cheapest in	January
Average price	£94

Ryanair
30/9-7/10
Nonstop
3h 30m total
Ireland to Brussels

Search Deals

Ryanair
30/9
Nonstop
1h 45m total
Ireland to Brussels

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£15 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Wed 30/9

07:10-09:55

Nonstop1h 45m

Brussels Bruxelles-National

Wed 7/10

10:30-11:15

Nonstop1h 45m

£35

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Fri 2/10

06:35-09:20

Nonstop1h 45m

Brussels Bruxelles-National

Mon 5/10

09:35-10:20

Nonstop1h 45m

£62

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Wed 16/9

07:10-09:55

Nonstop1h 45m

Brussels Bruxelles-National

Fri 18/9

10:20-11:05

Nonstop1h 45m

£67

Fastest return journey

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Thu 18/2

06:40-09:20

Nonstop1h 40m

Brussels Bruxelles-National

Sun 21/2

10:30-11:10

Nonstop1h 40m

£93

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Wed 30/9

07:10-09:55

Nonstop1h 45m

Brussels Bruxelles-National

Wed 30/9

18:00-18:45

Nonstop1h 45m

£107

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Sun 25/10

07:15-09:55

Nonstop1h 40m

Brussels Bruxelles-National

Sat 31/10

16:25-17:05

Nonstop1h 40m

£130

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Sun 7/2

08:55-14:15

1 stop4h 20m

Brussels Bruxelles-National

Wed 10/2

08:05-12:40

1 stop5h 35m

£143

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Fri 27/11

18:35-08:40

1 stop13h 05m

Brussels Bruxelles-National

Sun 29/11

09:30-11:20

1 stop26h 50m

£147

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Thu 15/10

08:50-17:30

1 stop7h 40m

Brussels Bruxelles-National

Mon 19/10

14:25-22:15

1 stop8h 50m

£151

DublinBrussels

DUB Dublin - BRU Brussels Bruxelles-National

DUBBRU

Dublin

Thu 1/10

20:20-09:55

1 stop12h 35m

Brussels Bruxelles-National

Sun 4/10

20:40-07:45

1 stop12h 05m

£154

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Ireland to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Ireland with our price prediction graph.

DUB-BRU

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Brussels

IE0-BR1

DUB-BRU

What is the cheapest month to book a flight from Ireland to Brussels?

Currently, January is the cheapest month in which you can book a flight from Ireland to Brussels (average of £56). Flying from Ireland to Brussels in May is currently the most expensive (average of £131). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IE to BRU?

Unlike at midday, when flights are generally more expensive, you can save up to 41% on flights from Ireland to Brussels by exploring options for tickets in the evening.

Weekly flight availability from Ireland to Brussels

The most flights from IE0 to BR1 are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

How often are flights from Ireland to Brussels delayed?

About 13% of weekly flights between Ireland and Brussels have experienced delays in the past year, with the average delay time being 109 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Wednesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from Ireland to Brussels?

The best time to book flights from Ireland to Brussels is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Brussels

Check out reviews from past customers who have flown with Aer Lingus and Ryanair from Ireland to Brussels to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,744 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Aer Lingus

7.3

Good

1,744 reviews

Aer Lingus

7.3

Good

1,744 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Ryanair

6.9

Okay

5,488 reviews

Aer Lingus

7.3

Good

1,744 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Patrick,Sept 2026

DUB - IAD

I had a great experience. Crew was great and very accommodating.

Related info for your journey

How long is the flight from Ireland to Brussels?
Ryanair and KLM can get you from Ireland to Brussels in just under 1h 45m. Your travel time can differ by up to 2h 35m. There are 486 mi between Ireland and Brussels. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most reliable airlines from Ireland to Brussels?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to Brussels on time: Aer Lingus (81%), JetBlue (81%), American Airlines (79%).
What are the cheapest flights from Ireland to Brussels?
The cheapest flight price from Ireland to Brussels is £74. On average you can expect to pay £136. The most popular route, (Dublin - Brussels Bruxelles-National), can usually be booked for £108.
Can I find deals for flights from Ireland to Brussels that include hotel bookings?
Yes. In addition to deals on Ireland to Brussels flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Brussels?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Brussels.
Can I find deals for business class flights from Ireland to Brussels?
Yes. Cheapflights offers flight deals from Ireland to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ireland to Brussels?
Currently, January is the cheapest month in which you can book a flight from Ireland to Brussels (average of £56). Flying from Ireland to Brussels in May is currently the most expensive (average of £131). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ireland to Brussels

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Belfast City to Charleroi Brussels flights

Top 2 airlines flying from Ireland to Brussels

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£36	Average£90	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Aer Lingus	Cheapest£58	Average£136	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to Brussels?

Deals for Ireland to Brussels flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Brussels?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Brussels.

Can Cheapflights find flights from Ireland to Brussels with no change fees?

Certainly. Search results for flights to Brussels from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ireland to Brussels become cheaper?

Yes! Start tracking prices for Ireland to Brussels flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ireland to Brussels from £13

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Brussels

Cheapest flights from Ireland to BrusselsExplore the most affordable flight options available from Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Explore the most affordable flight options available from Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Ireland to BrusselsDiscover carefully curated flight deals from Ireland to Brussels that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Discover carefully curated flight deals from Ireland to Brussels that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Direct flights from Ireland to BrusselsExplore direct flight options from Ireland to Brussels based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 September 2026.

Explore direct flight options from Ireland to Brussels based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 September 2026.

Last-minute flights from Ireland to BrusselsDiscover last-minute flight deals from Ireland to Brussels. Data last updated 2 September 2026 and is based on user searches.

Discover last-minute flight deals from Ireland to Brussels. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Ireland to BrusselsSearch for one-way flight options from Ireland to Brussels. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Search for one-way flight options from Ireland to Brussels. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Find flight deals from Ireland to Brussels

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One-way from

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Cheapest in

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Use the filters below to find and compare flights from Ireland to Brussels that are best for you.

Best time to book a flight from Ireland to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Ireland with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Ireland to Brussels?

What is the cheapest time of day to fly from IE to BRU?

Find hourly flight availability from Ireland to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 September 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 41% on flights from Ireland to Brussels by exploring options for tickets in the evening.

Weekly flight availability from Ireland to Brussels

Explore weekly flight availability from Ireland to Brussels. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 September 2026.

The most flights from IE0 to BR1 are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

How often are flights from Ireland to Brussels delayed?

About 13% of weekly flights between Ireland and Brussels have experienced delays in the past year, with the average delay time being 109 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Wednesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from Ireland to Brussels?

The best time to book flights from Ireland to Brussels is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Brussels

Check out reviews from past customers who have flown with Aer Lingus and Ryanair from Ireland to Brussels to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Ireland to Brussels?

What are the most reliable airlines from Ireland to Brussels?

What are the cheapest flights from Ireland to Brussels?

Can I find deals for flights from Ireland to Brussels that include hotel bookings?

How can I find direct flights from Ireland to Brussels?

Can I find deals for business class flights from Ireland to Brussels?

What is the cheapest month to book a flight from Ireland to Brussels?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Brussels

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Brussels by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Belgium

Book a non-stop flight to one of these other cities located in Belgium.

Search flights from Ireland to Brussels by cabin class

Find flights from Ireland to Brussels, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ireland and Brussels flights

Browse other Ireland and Brussels flight options. Last updated on 2 September 2026.

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Ireland to Brussels flights

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Top 2 airlines flying from Ireland to Brussels

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to Brussels?

Why should you use Cheapflights to find cheap flight tickets from Ireland to Brussels?

Can Cheapflights find flights from Ireland to Brussels with no change fees?

Can Cheapflights notify me if prices for flights from Ireland to Brussels become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from Ireland to Brussels
Explore the most affordable flight options available from Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2026.

Best flights from Ireland to Brussels
Discover carefully curated flight deals from Ireland to Brussels that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2026.

Direct flights from Ireland to Brussels
Explore direct flight options from Ireland to Brussels based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 September 2026.

Last-minute flights from Ireland to Brussels
Discover last-minute flight deals from Ireland to Brussels. Data last updated 2 September 2026 and is based on user searches.

One-way flights from Ireland to Brussels
Search for one-way flight options from Ireland to Brussels. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.