Cheap Flights from Dublin to Brussels International

Compare Dublin to Brussels International flight deals

Find the cheapest month or even day of the year to fly to Brussels International

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Flight deals from Dublin to Brussels International

Looking for a cheap last-minute deal or the best round-trip flight from Dublin Airport to Brussels International Airport? If you want to travel next month, round-trip fares start from $93. Find the lowest prices on one-way and round-trip tickets right here.

Brussels.$41 per passenger.Departing Thu, Sep 10, returning Sun, Sep 20.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Thu, Sep 10, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Sun, Sep 20, arriving in Dublin.Price includes taxes and charges.From $41, select.

Brussels.$44 per passenger.Departing Thu, Sep 10, returning Tue, Oct 13.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Thu, Sep 10, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Oct 13, arriving in Dublin.Price includes taxes and charges.From $44, select.

Brussels.$44 per passenger.Departing Fri, Aug 28, returning Tue, Oct 13.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Fri, Aug 28, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Oct 13, arriving in Dublin.Price includes taxes and charges.From $44, select.

Brussels.$46 per passenger.Departing Thu, Aug 27, returning Tue, Sep 8.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Thu, Aug 27, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Sep 8, arriving in Dublin.Price includes taxes and charges.From $46, select.

Brussels.$46 per passenger.Departing Wed, Oct 7, returning Tue, Oct 13.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Wed, Oct 7, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Oct 13, arriving in Dublin.Price includes taxes and charges.From $46, select.

Brussels.$47 per passenger.Departing Tue, Aug 11, returning Sun, Aug 23.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Tue, Aug 11, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Sun, Aug 23, arriving in Dublin.Price includes taxes and charges.From $47, select.

Brussels.$65 per passenger.Departing Wed, Jul 8, returning Tue, Aug 18.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Wed, Jul 8, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Aug 18, arriving in Dublin.Price includes taxes and charges.From $65, select.

Brussels.$74 per passenger.Departing Thu, Oct 29, returning Wed, Nov 4.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Thu, Oct 29, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Wed, Nov 4, arriving in Dublin.Price includes taxes and charges.From $74, select.

Brussels.$88 per passenger.Departing Mon, Sep 14, returning Wed, Nov 18.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Mon, Sep 14, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Wed, Nov 18, arriving in Dublin.Price includes taxes and charges.From $88, select.

Brussels.$89 per passenger.Departing Fri, Jul 24, returning Tue, Sep 1.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Fri, Jul 24, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Tue, Sep 1, arriving in Dublin.Price includes taxes and charges.From $89, select.

Brussels.$90 per passenger.Departing Sat, Oct 10, returning Thu, Dec 24.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Sat, Oct 10, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Thu, Dec 24, arriving in Dublin.Price includes taxes and charges.From $90, select.

Brussels.$93 per passenger.Departing Sat, Jul 25, returning Thu, Jul 30.Round-trip flight with Ryanair.Outbound direct flight with Ryanair departing from Dublin on Sat, Jul 25, arriving in Brussels International.Inbound direct flight with Ryanair departing from Brussels International on Thu, Jul 30, arriving in Dublin.Price includes taxes and charges.From $93, select.

Brussels.$97 per passenger.Departing Tue, Nov 3, returning Thu, Nov 5.Round-trip flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Dublin on Tue, Nov 3, arriving in Brussels International.Inbound direct flight with Aer Lingus departing from Brussels International on Thu, Nov 5, arriving in Dublin.Price includes taxes and charges.From $97, select.

Brussels.$97 per passenger.Departing Tue, Nov 24, returning Tue, Dec 1.Round-trip flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Dublin on Tue, Nov 24, arriving in Brussels International.Inbound direct flight with Aer Lingus departing from Brussels International on Tue, Dec 1, arriving in Dublin.Price includes taxes and charges.From $97, select.

Brussels.$97 per passenger.Departing Tue, Dec 1, returning Wed, Dec 2.Round-trip flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Dublin on Tue, Dec 1, arriving in Brussels International.Inbound direct flight with Aer Lingus departing from Brussels International on Wed, Dec 2, arriving in Dublin.Price includes taxes and charges.From $97, select.

Brussels.$103 per passenger.Departing Wed, Jan 13, returning Sat, Jan 16.Round-trip flight with Aer Lingus.Outbound direct flight with Aer Lingus departing from Dublin on Wed, Jan 13, arriving in Brussels International.Inbound direct flight with Aer Lingus departing from Brussels International on Sat, Jan 16, arriving in Dublin.Price includes taxes and charges.From $103, select.

Find the cheapest month to fly from Dublin to Brussels International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to Brussels International flights are currently cheapest in September.

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Direct flights from Dublin to Brussels International

Dublin to Brussels International: Alternative routes

Compare routes from Dublin to Brussels below. You may find an airport to fly into that's cheaper, faster, or easier than Brussels International.

Dublin to Brussels: Flight information

The things to know before you go.

Cheapest flight found	$41
Cheapest month to fly	September
Average flight time	1 hr, 44 mins
Most popular airline	Aer Lingus
Average flights per week	57

Finding cheap flights from Dublin to Brussels International: Frequently asked questions

How much are round-trip flights from Dublin to Brussels International?

The best price we found for a round-trip flight from Dublin to Brussels International is $41. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Dublin to Brussels International?

1 hour and 44 minutes is the average flight time from Dublin to Brussels International.

Which airlines fly direct from Dublin to Brussels International?

Aer Lingus, Ryanair and jetBlue fly direct from Dublin to Brussels International.

How many flights are there a week from Dublin to Brussels International?

There are 57 flights per week flying from Dublin to Brussels International, as of June 2026.

When is the cheapest time to fly from Dublin to Brussels International?

The cheapest month to fly from Dublin to Brussels International is usually September.

Which upcoming date is cheapest to fly from Dublin Airport to Brussels International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Brussels International Airport on Thursday, September 10, 2026.

Can I get a direct flight from Dublin Airport to Brussels International Airport?

Yes – the average flight time is 1 hour and 44 minutes.

How can I find the best flight deal to Brussels International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Brussels International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Brussels?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Brussels is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Dublin Airport to Brussels International?

Currently, Ryanair offers the cheapest flight tickets to Brussels International.

Flying from Dublin Airport (DUB) to Brussels International Airport (BRU): what you need to know

The average length of a direct flight from Dublin Airport to Brussels International Airport is 1 hour 45 minutes.
The timezone in Brussels is UTC+1, which is one hour ahead of Dublin.
Flights from DUB to BRU start from 05:45 — the earliest with Ryanair. The last service of the day is at 19:15 with Ryanair. Overall, you can choose from 27 weekly Dublin Airport to Brussels International Airport flights.
Your DUB to BRU flight won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.
Traveling during a peak time such as July? Major public holidays and other popular seasons can lead to longer queues and delays at check-in and security. Play it safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.
Flying into Brussels (and then exploring more of Belgium!) is easy with Ryanair. This popular carrier has direct flights from Dublin Airport to Brussels International Airport.
Most passengers choose to fly with Ryanair on this route.
With an impressive 88.28% of services arriving as scheduled, Aer Lingus is the most punctual carrier for DUB to BRU flights.
We make it a breeze to book a flight with a stopover. To see all your options for tickets from Dublin Airport to Brussels International Airport, deselect 'Direct flights only.' Then, choose a flight that has a stop long enough to visit your chosen city. Some great stopovers between DUB and BRU include:
- London Heathrow Airport
- Amsterdam Schiphol Airport
- Manchester Airport

How to find the cheapest flights from Dublin Airport (DUB) to Brussels International Airport (BRU)

The cheapest price we've seen for a one-way Dublin Airport to Brussels International Airport flight is $20. A return fare is currently $41. Depending on the availability when you book, these fares could change.
Score cheap tickets from DUB to BRU by booking 11 months ahead. According to our research, that's the sweet spot for landing a bargain.
The cheapest month for flights from Dublin Airport to Brussels International Airport is April. Use the 'Whole month' tool to find the lowest prices if you have a flexible schedule.
There's no need to check every day to see if fares have gone down when you create a Price Alert. We'll update you the moment there's a change in price on cheap flights from DUB to BRU.
Find the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Dublin Airport to Brussels International Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Dublin Airport (DUB)

77% of flights that leave from Dublin Airport land at their destination on schedule.
Dublin Airport is around 11 kilometers from central Dublin. If you're ride-sharing, catching a cab or driving from the center, it'll take 25 minutes or so to arrive, depending on the traffic.
Planning to catch public transport? You can expect a journey time of around 30 minutes.
Get your journey off to a hassle-free start by staying near DUB. Whether you've booked an early flight from Dublin Airport to Brussels International Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Brussels International Airport (BRU)

The last thing you want is a lengthy trip to your hotel if you're landing late on a Dublin Airport to Brussels International Airport flight. Reserve one of these accommodation options near BRU instead:
Begin your adventure by picking up a Brussels International Airport rental car. Grab a set of wheels from Keddy By Europcar, Alamo or Europcar to explore Brussels and beyond.
To secure the lowest price, reserve your ride from Brussels International Airport around three weeks before your trip.

When to fly to Brussels International Airport (BRU)

The quietest month for a flight from Dublin Airport to Brussels International Airport is March, while September is the most popular. Pick the ideal time to visit Brussels based on whether you prefer a laid-back vibe or a more bustling atmosphere.
The warmest month in Brussels is August, with temperatures ranging between 12ºC (54ºF) and 27ºC (81ºF). Book your flights from Dublin Airport to Brussels International Airport in this month if this is the type of weather you like.
January has average temperatures of between -2ºC (28ºF) and 8ºC (46ºF). Search for cheap tickets from DUB to BRU sometime around then if you want to travel when it's cooler.

Explore more of Belgium

Charleroi is just one of the many cities in Belgium waiting to be explored after you've seen Brussels. Around 48 kilometers away to the south, its top attractions include Musée de la Photographie, BPS22, Musee d'art de la Province de Hainaut and Le Bois du Cazier.
Around 88 kilometers east of Brussels, Liege is another favorite stop in Belgium. Start your sightseeing at Cathedral de Liege (Liege Cathedral), Parc De La Citadelle and Parc de la Chartreuse.