€23 Find Cheap Flights from Dublin to Brussels

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 4/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Brussels, as well as popular online travel agencies
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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 return 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 return flight deals from Dublin to Brussels

Sat, 4 Oct - Tue, 7 Oct
Ryanair Logo
18:50 - 21:30DUB-BRU
1h 40mdirect
Ryanair Logo
22:20 - 23:00BRU-DUB
1h 40mdirect
€31Ryanair
Find Deal
Thu, 9 Oct - Mon, 13 Oct
Ryanair Logo
07:05 - 09:45DUB-BRU
1h 40mdirect
Ryanair Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
€32Ryanair
Find Deal
Tue, 7 Oct - Tue, 14 Oct
Ryanair Logo
06:45 - 09:25DUB-BRU
1h 40mdirect
Ryanair Logo
10:00 - 10:40BRU-DUB
1h 40mdirect
€33Ryanair
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Ryanair Logo
06:20 - 09:00DUB-BRU
1h 40mdirect
Ryanair Logo
21:30 - 22:10BRU-DUB
1h 40mdirect
€34Ryanair
Find Deal
Thu, 9 Oct - Sun, 12 Oct
Ryanair Logo
07:05 - 09:45DUB-BRU
1h 40mdirect
Ryanair Logo
09:45 - 10:25BRU-DUB
1h 40mdirect
€36Ryanair
Find Deal
Sun, 12 Oct - Mon, 13 Oct
 Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
 Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
Fri, 7 Nov - Sun, 9 Nov
Aer Lingus Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Aer Lingus Logo
10:15 - 11:00BRU-DUB
1h 45mdirect
€67Aer Lingus
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Sat, 4 Oct - Wed, 8 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€68Aer Lingus
Find Deal
Sat, 4 Oct - Tue, 7 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€69Aer Lingus
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
10:20 - 11:05BRU-DUB
1h 45mdirect
€84Aer Lingus
Find Deal

Everything you should know

Top airlines
Ryanair
Cheapest • from €31 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DUB-BRU
Cheapest
DUB-BRU
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest return fare
€31
Typical prices: €67-156
Ryanair
Sat 4/10Tue 7/10
DUB - BRU • Direct
Cheapest one-way flight
€23
Typical prices: €40-152
Aer Lingus
Tue 4/11
DUB - BRU • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Brussels!
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 return flight from Dublin to Brussels?

What is the cheapest Dublin to Brussels flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Dublin to Brussels costs €82 on the route between Dublin (DUB) and Brussels Bruxelles-National Airport (BRU). It is also the most popular route.

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 clicked on KAYAK for each day over the last 12 months.

For Dublin to Brussels, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Brussels back to Dublin, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Brussels, 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 is January, where tickets cost €64 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is €126 and €104 respectively.

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

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, 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, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Cheapest flight€23
Flight from Dublin to Brussels Airport

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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 flights from Dublin to Brussels

  • What is the cheapest flight from Dublin to Brussels?

    In the last 3 days, the lowest price for a flight from Dublin to Brussels was €27 for a one-way ticket and €36 for a return.

  • Which airports will I be using when flying from Dublin to Brussels?

    When flying out of Dublin you will be using Dublin. You will be landing at one of these airports: Brussels Bruxelles-National or Charleroi Brussels.

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

    We unfortunately don’t have that data for this specific route.

  • 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 return ticket. You could then fly to Brussels with an airline and back to Dublin with another airline.

  • 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.

Prefer to fly direct from Dublin to Brussels?

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

Direct departures

Dublin to Brussels

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 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 airline 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.
7.2
Aer LingusOverall score based on 1271 reviews
7.3Boarding
6.9Entertainment
6.5Food
8.0Crew
7.1Comfort
Airline reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

2.0 MediocreAnonymous, Sept 2025DUB - EWR
Read more Aer Lingus reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

Horrible. I had to wait in Dublin for 4 hours for the next connecting flight which took my to London and than i had to wait 3 hours for the flight to Dusseldorf

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

We had a long delay leaving IOM. No food or drunk service as it is a short flight. Shuttled by bus from terminal to plane with packed in conditions on bus.

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

Not satisfying due to loss Luguage for 4days. Damage Luguage that had no way to fill up a report for and me as a client to spend more money and time to replace it. Thank you for soliciting my opinion, but it was unfortunately a very disappointing experience. Stephanie Zvi

Delightful flight, ahead of time with a super crew, thanks

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

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

Information on your arrival and departure airports

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