Question 1

What are the cheapest airlines flying from Dublin to Brussels round-trip?

Accepted Answer

According to our current data, Ryanair (£30), Lufthansa (£152), and Scandinavian Airlines (£154) offers the cheapest pricing from Dublin to Brussels. Ryanair is 63% cheaper than the average price of flights available within the next 90 days to this destination.

Question 2

What are the cheapest airlines to fly from Dublin to Brussels one-way?

Accepted Answer

£16 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Lufthansa and Scandinavian Airlines, with prices starting from £70 and £74, respectively.

Question 3

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

Accepted Answer

The best time to book flights from Dublin to Brussels is 84 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 4

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Dublin to Brussels (average of £117). Flying from Dublin to Brussels in July is currently the most expensive (average of £172). 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 5

What is the cheapest day to fly from Dublin to Brussels?

Accepted Answer

Travellers seeking maximum savings on their Dublin to Brussels flight should consider departing on Sunday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Dublin to Brussels

Accepted Answer

The most flights from DUB to BR1 are scheduled on a Thursday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Question 7

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 8

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 9

What are the cheapest flights from Dublin to Brussels?

Accepted Answer

While on average a flight from Dublin to Brussels is generally £53, our data shows the cheapest flight currently is £14. When looking at the most popular route, (Dublin - Brussels Bruxelles-National), you can expect to pay £107 for that flight.

Question 10

What are the most reliable airlines from Dublin to Brussels?

Accepted Answer

The top 3 most reliable airlines when flying from Dublin to Brussels are Aer Lingus (89%), JetBlue (89%) and American Airlines (88%).

Question 11

What is the cheapest day to fly round-trip from Dublin to Brussels?

Accepted Answer

Friday flights are found to be more expensive to fly from Dublin to Brussels. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Brussels.

Question 12

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

Accepted Answer

Travelers have found it’s best to book a flight 44 days in advance to save up to 33% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Dublin to Brussels 1-2 weeks in advance for as low as £58, or £149 for flights within the next 24 hours.

Question 13

What is the cheapest month to fly from Dublin to Brussels?

Accepted Answer

Flights from Dublin to Brussels lean towards being more expensive in December. Prices are generally better when you fly from Dublin to Brussels in January, with the cheapest ticket starting at £25.

Question 14

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

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 17% on flights from Dublin to Brussels by exploring options for tickets at midday.

Question 15

What airport do you fly from for flights from Dublin to Brussels?

Accepted Answer

Located just 5.7 mi from the city center, Dublin is the airport most travelers will use when flying to Brussels from Dublin. Booking flights from Dublin (DUB) to Brussels should be relatively easy as there are 6 daily outbound flights to Brussels from 2 different airlines.

Question 16

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

Accepted Answer

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

Question 17

How can I find direct flights from Dublin 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 Dublin to Brussels.

Question 18

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

Accepted Answer

Yes. Cheapflights offers flight deals from Dublin 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 19

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

Accepted Answer

Deals for Dublin 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 20

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

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Brussels from Dublin.

Question 21

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

Accepted Answer

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

Question 22

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

Accepted Answer

Of course! You can now track prices for flights from Dublin to Brussels and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	£30
One-way from	£16
Popular in	December
Cheapest in	January
Average price	£86

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£28	Average£66	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Aer Lingus	Cheapest£51	Average£77	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Dublin to Brussels from £16

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Dublin to Brussels are usually found in January or September, booked 84 days in advance, depart on a Sunday or Thursday and return on a Saturday

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Find flight deals from Dublin to Brussels

Cheapest flights from Dublin to BrusselsExplore the most affordable flight options available from Dublin to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Explore the most affordable flight options available from Dublin to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dublin to Brussels

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Dublin to Brussels. Price data was last updated on 27 June 2025.

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

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

Find hourly flight availability from Dublin 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 11 July 2025.

Weekly flight availability from Dublin to Brussels

Explore weekly flight availability from Dublin 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 11 July 2025.

How much does it cost for a return flight from Dublin to Brussels?

Reviews of airlines servicing Brussels

Read through reviews of airlines operating flights from Dublin to Brussels, such as KLM, Austrian Airlines, andSWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Dublin to Brussels?

What are the cheapest airlines flying from Dublin to Brussels round-trip?

What are the cheapest airlines to fly from Dublin to Brussels one-way?

What are the most reliable airlines from Dublin to Brussels?

What are the cheapest flights from Dublin to Brussels?

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

How can I find direct flights from Dublin to Brussels?

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

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

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Alternative routes for Dublin to Brussels

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Top 2 airlines flying from Dublin to Brussels

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

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

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

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

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Cheapest flights from Dublin to Brussels
Explore the most affordable flight options available from Dublin to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.