€15 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 20/5. 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

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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Everything you should know

Cheapest return fare
€38
Typical prices: €224-€78
Ryanair
Tue 9/6Tue 16/6
DUB - BRU • Direct
Cheapest one-way flight
€15
Typical prices: €24-€123
Ryanair
Wed 20/5
DUB - BRU • Direct
Direct flights
You can fly direct with Aer Lingus and Ryanair. Average duration is 1h 45m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 30% average savings
Most popular
Insights
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Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 48% compared to booking last minute.
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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!
Flight Deals
Booking Insights
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

Tue, 9 Jun - Tue, 16 Jun
Ryanair Logo
06:25 - 09:10
DUB
-
BRU
1h 45mdirect
Ryanair Logo
19:45 - 20:30
BRU
-
DUB
1h 45mdirect
€38Ryanair
Tue, 9 Jun - Tue, 16 Jun
Ryanair Logo
06:25 - 09:10
DUB
-
BRU
1h 45mdirect
Ryanair Logo
19:45 - 20:30
BRU
-
DUB
1h 45mdirect
€39Ryanair
Wed, 27 May - Sat, 30 May
Ryanair Logo
07:10 - 09:55
DUB
-
BRU
1h 45mdirect
Ryanair Logo
17:20 - 18:05
BRU
-
DUB
1h 45mdirect
€40Ryanair
Tue, 9 Jun - Tue, 16 Jun
Ryanair Logo
06:25 - 09:10
DUB
-
BRU
1h 45mdirect
Ryanair Logo
19:45 - 20:30
BRU
-
DUB
1h 45mdirect
€41Ryanair
Wed, 27 May - Wed, 3 Jun
Ryanair Logo
07:10 - 09:55
DUB
-
BRU
1h 45mdirect
Ryanair Logo
10:30 - 11:15
BRU
-
DUB
1h 45mdirect
€44Ryanair
Wed, 17 Jun - Mon, 22 Jun
Ryanair Logo
05:45 - 08:25
DUB
-
CRL
1h 40mdirect
Ryanair Logo
21:40 - 22:25
CRL
-
DUB
1h 45mdirect
€44Ryanair
Fri, 19 Jun - Mon, 22 Jun
Ryanair Logo
06:00 - 08:40
DUB
-
CRL
1h 40mdirect
Ryanair Logo
21:40 - 22:25
CRL
-
DUB
1h 45mdirect
€45Ryanair
Fri, 12 Jun - Mon, 15 Jun
Ryanair Logo
06:00 - 08:40
DUB
-
CRL
1h 40mdirect
Ryanair Logo
21:40 - 22:25
CRL
-
DUB
1h 45mdirect
€46Ryanair
Fri, 15 May - Mon, 18 May
Ryanair Logo
06:00 - 08:40
DUB
-
CRL
1h 40mdirect
Ryanair Logo
21:40 - 22:25
CRL
-
DUB
1h 45mdirect
€47Ryanair
Mon, 1 Jun - Wed, 3 Jun
Ryanair Logo
18:35 - 21:15
DUB
-
CRL
1h 40mdirect
Ryanair Logo
09:20 - 10:05
CRL
-
DUB
1h 45mdirect
€48Ryanair
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?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to Brussels departing in June.

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 €38 on the route between Dublin (DUB) and Charleroi Brussels Airport (CRL). Over the past month, this route was, on average, 30% cheaper than other Dublin-Brussels routes. The most popular route is between Dublin (DUB) and Brussels Bruxelles-National Airport (BRU).

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, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Brussels back to Dublin, the best deals are generally found on Thursday, 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 May, where tickets cost €15 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is €55 and €47 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 3 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Cheapest flight€15
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 €15 for a one-way ticket and €38 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 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 1540 reviews
8.1Crew
7.4Boarding
7.2Comfort
7.0Entertainment
6.6Food
Airline reviews

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.

10.0 ExcellentAnthon, Apr 2026
DUB - BOS
Read more Aer Lingus reviews

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.

On time, only a little turbulence, very competent and caring attendants. Clear information.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

On a four hour delayed flight now on seats back end of the plane instead front-

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

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.

On time departure; arrived early into Faro. Air Malta operating flight, crew friendly and efficient.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Nothing unexpected considering it is a Ryanair flight. It does the job. Nothing above, at all.

From boarding to disembarking, the whole operation was very efficient.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

There isn’t any entertainment. The food and drink was available for a price. I didn’t buy any.

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.

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

Information on your arrival and departure airports