DUB - BRU

$33 Find Cheap Flights from Dublin to Brussels - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Brussels departing on 9/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$51
Typical prices: $69-$138
Ryanair
Fri 8/28Mon 8/31
DUB - BRU • Non-stop
Cheapest one-way
$33
Typical prices: $41-$89
Ryanair
Sat 9/26
DUB - BRU • Non-stop
Top airlines
Cheapest • from $51 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Aer Lingus and Ryanair. Average duration is 1h 46m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Brussels!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dublin to Brussels (DUB-BRU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dublin to Brussels that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dublin to Brussels

Fri, Aug 28 - Mon, Aug 31
Ryanair Logo
6:35 am - 9:20 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
8:00 pm - 8:45 pm
BRU
-
DUB
1h 45mnonstop
$51Ryanair
Fri, Aug 28 - Mon, Aug 31
Ryanair Logo
6:35 am - 9:20 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
8:00 pm - 8:45 pm
BRU
-
DUB
1h 45mnonstop
$52Ryanair
Tue, Aug 11 - Wed, Aug 12
Ryanair Logo
6:25 am - 9:10 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
10:30 am - 11:15 am
BRU
-
DUB
1h 45mnonstop
$53Ryanair
Thu, Aug 27 - Sun, Aug 30
Ryanair Logo
6:50 am - 9:35 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
9:50 am - 10:35 am
BRU
-
DUB
1h 45mnonstop
$54Ryanair
Thu, Sep 24 - Sat, Sep 26
Ryanair Logo
6:50 am - 9:35 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
5:20 pm - 6:05 pm
BRU
-
DUB
1h 45mnonstop
$56Ryanair
Wed, Sep 2 - Wed, Sep 9
Ryanair Logo
7:10 am - 9:55 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
10:30 am - 11:15 am
BRU
-
DUB
1h 45mnonstop
$59Ryanair
Tue, Sep 15 - Thu, Sep 17
Ryanair Logo
6:25 am - 9:10 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
10:20 am - 11:05 am
BRU
-
DUB
1h 45mnonstop
$62Ryanair
Sat, Oct 3 - Mon, Oct 5
Ryanair Logo
2:00 pm - 4:45 pm
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
8:00 pm - 8:45 pm
BRU
-
DUB
1h 45mnonstop
$64Ryanair
Mon, Sep 28 - Tue, Oct 6
Ryanair Logo
4:40 pm - 7:25 pm
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
7:45 pm - 8:30 pm
BRU
-
DUB
1h 45mnonstop
$65Ryanair
Tue, Sep 15 - Wed, Sep 16
Ryanair Logo
6:25 am - 9:10 am
DUB
-
BRU
1h 45mnonstop
Ryanair Logo
10:30 am - 11:15 am
BRU
-
DUB
1h 45mnonstop
$68Ryanair
Booking Insights

KAYAK's insights & trends for Dublin to Brussels flights

Get data-powered insights and trends into flights from Dublin to Brussels to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Dublin to Brussels Bruxelles-National Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Brussels Bruxelles-National Airport departing in August.

What’s the cheapest day of the week to fly from Dublin to Brussels?

The average price of all round-trip flights from Dublin to Brussels Bruxelles-National Airport clicked on KAYAK for each day over the last 12 months.

When flying from Dublin to Brussels, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Dublin, you’ll find the best rates on Fridays and the most expensive ones on Tuesdays.

What is the cheapest month to fly from Dublin to Brussels Bruxelles-National Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Brussels Bruxelles-National Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Dublin to Brussels Bruxelles-National Airport is January, where tickets cost $73 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is $179 and $151 respectively.

How far in advance should I book a flight from Dublin to Brussels Bruxelles-National Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin to Brussels Bruxelles-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Dublin to Brussels Bruxelles-National Airport, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Dublin to Brussels

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on Ryanair

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Good to know

Low seasonMarch
Cheapest flight$33
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Dublin to Brussels

When to book flights from Dublin to Brussels

Are your dates flexible? Find out the best times to travel from Dublin to Brussels based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Dublin to Brussels flights

  • What is the best way to get to the centre of Brussels from Brussels International Airport?

    If you’re travelling from Brussels International Airport to the centre of town then you might want to get the train, which will take you there in about 12min for a price of approx. €17.50. You could also take the bus, which will take about 26min and cost you around €10.

  • Which airlines fly non-stop from Dublin International Airport to Brussels International Airport?

    If you are flying with Ryanair from Dublin to Brussels then you can expect a direct flight. Aer Lingus also offers its customers direct flights from Dublin to Brussels. If you are travelling with Lufthansa you may have a layover in Munich (MUC), and if you are travelling with KLM then you may have a layover in Amsterdam (AMS).

  • What is the cheapest flight from Dublin to Brussels Bruxelles-National Airport?

    In the last 5 days, the lowest price for a flight from Dublin to Brussels Bruxelles-National Airport was $33 for a one-way ticket and $51 for a round-trip.

  • Do I need a passport to fly between Dublin and Brussels?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Dublin and on arrival in Brussels.

  • Which aircraft models fly most regularly from Dublin to Brussels?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Dublin to Brussels flight route.

  • On which days can I fly direct from Dublin to Brussels?

    There are nonstop flights from Dublin to Brussels on a daily basis.

  • Which is the best airline for flights from Dublin to Brussels, Aer Lingus or Ryanair?

    The two airlines most popular with KAYAK users for flights from Dublin to Brussels are Aer Lingus and Ryanair. With an average price for the route of $156 and an overall rating of 7.3, Aer Lingus is the most popular choice. Ryanair is also a great choice for the route, with an average price of $119 and an overall rating of 6.9.

  • How does KAYAK find such low prices on flights from Dublin to Brussels?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dublin to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dublin to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Dublin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dublin to Brussels?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back to Dublin with another airline. Booking your flights between Dublin and BRU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dublin to Brussels?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from Dublin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Dublin to Brussels Bruxelles-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $74 or less one-way and $150 or less round-trip.
  • If you’re going to travel from the centre of Dublin to Dublin International Airport (DUB), the line 703 bus will take around 11min and cost approximately €10. If you prefer to take a taxi, it will generally take about 15min and should cost around €32.
  • Dublin International Airport offers customers private parking close to Terminal 2. The service is open to all airport customers at a price of about €40 per day.
  • If you want to relax before your flight, you could spend some time in The Lounge at Dublin International Airport. Open to the public at a cost of around €20 per person, The Lounge offers complimentary drinks, snacks, and magazines with a place to relax and faster Wi-Fi.
  • If you are in need of a shower once you land at Brussels International Airport (BRU) then you can head to the fourth floor of the airport terminal, the floor above the departures hall. There you will find the Regus Brussels Airport Terminal Meeting Centre, which has shower facilities available.

Prefer to fly direct from Dublin to Brussels?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Dublin to Brussels Bruxelles-National.
Find which airlines fly direct from Dublin Airport to Brussels Bruxelles-National Airport, which days they fly and book direct flights.

Direct departures

Dublin to Brussels Bruxelles-National

Monday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Tuesday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Wednesday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Thursday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Friday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Saturday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Sunday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

See more direct flights

Direct returns

Brussels Bruxelles-National to Dublin

Monday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Tuesday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Wednesday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Thursday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Friday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Saturday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

Sunday

Aer Lingus,Ryanair

Aer Lingus,Ryanair

See more direct flights

Reviews of the top airlines flying from Dublin to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dublin to Brussels? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1638 reviews
7.4Boarding
7.0Entertainment
8.1Crew
6.6Food
7.2Comfort
Airline reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

2.0 MediocreGeorge Craig, Jul 2026
DUB - LHR
Read more Aer Lingus reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

The delay was very discouraging--- having to wait in the airport during the heat wave after a long flight from the US was a challenge.

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

Flight crew was very cold and stood around a lot talking to each other.

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

Flight was ontime, clean, staff was friendly - there was turbulence but can’t avoid that (it’s a flight 😉)! The staff were attentive but would be nice if Aerlingus didn’t charge for coffee ☺️ but overall I enjoyed my flight experience and will travel with them again (Ireland’s Four star airline

Although our departure (DUB) was slightly delayed we reached our destination (LBA) ahead of schedule. The price was very competitive too (around €100 return). Plus, the departure times for both legs were very good: 13:05 and 15:10, respectively. I gave a neutral rating for Food and Entertainment because I didn't avail of either.

Just pushing back from gate now. Boarded into fourth aircraft with 13 hour delay to scheduled departure. Crappy experience.

Notified as to why there’s a delay with our flight.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Cabin crew couldn’t be less interested. Cabin manager was the most arrogant and the rudest I’ve encountered in many years.

The worst flight ever. Sitting in plane for 4 hours delay and then they change crew. No water or food offered to any passengers including children in that time. Only 2 toilets out of 3 operating for flight with 200 passengers. Only enough food available for about 7 rows of seats depending where you sat you might be lucky. Cabin crew very unfriendly.

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

The punctuality of f the flight was super: we left on time and arrived about 20 minutes early - and the cabin crew were both friendly and efficient. The only downside was that Ryanair appears to have resumes its old obsession with sizing cabin bags again after a long and welcome absence.

I liked nothing. An extremely uncomfortable flight, staff were rude, no ice for my drink. 4 hours of misery

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

Information on your arrival and departure airports