Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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.

Question 3

How often are flights from Ireland to Brussels delayed?

Accepted Answer

About 12% of weekly flights between Ireland and Brussels have experienced delays in the past year, with the average delay time being 109 minutes.

Question 4

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

Accepted Answer

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 10% of flights being delayed.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Ireland to Brussels (average of £57). Flying from Ireland to Brussels in May is currently the most expensive (average of £133). 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.

Question 7

Weekly flight availability from Ireland to Brussels

Accepted Answer

The most flights from IE0 to BR1 are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

What are the cheapest flights from Ireland to Brussels?

Accepted Answer

The cheapest flight price from Ireland to Brussels is £48. On average you can expect to pay £88. The most popular route, (Dublin - Brussels Bruxelles-National), can usually be booked for £109.

Question 11

What are the most reliable airlines from Ireland to Brussels?

Accepted Answer

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 (92%), Qatar Airways (90%), JetBlue (88%).

Question 12

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

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 44% on flights from Ireland to Brussels by exploring options for tickets in the evening.

Question 13

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

Accepted Answer

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

Question 14

How can I find direct flights from Ireland to Brussels?

Accepted Answer

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

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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.

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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.

Question 19

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

Accepted Answer

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.

Popular in	May
Cheapest in	January
Average price	£106

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£47	Average£93	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Aer Lingus	Cheapest£64	Average£94	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Ireland to Brussels

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Cheapflights Insights

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.

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?

Unlike in the morning, when flights are generally more expensive, you can save up to 44% 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 (9 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 12% 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 10% of flights being delayed.

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

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?

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Alternative routes for Ireland to Brussels

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Complete your trip

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

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Ireland and Brussels flights

Browse other Ireland and Brussels flight options. Last updated on 23 September 2026.

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Top 2 airlines flying from Ireland to Brussels

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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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