$18 Cheap Flights from Dublin (DUB) to Brussels (BRU)

View $18 flight on Tue, May 6, 2025Opens in a new window

Popular airlines from Dublin Airport (DUB) to Brussels Airport (BRU)

Find available prices by choosing your travel dates.

Cheap Flights from Dublin to Brussels (DUB-BRU)

Prices were available within the past 7 days and start at $18 for one-way flights and $50 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Sun, Jun 15 - Mon, Jun 16
DUB
Dublin
BRU
Brussels
$50 Roundtrip, found 1 day ago
$50
Roundtrip
found 1 day ago
Select Ryanair flight, departing Sun, Jun 15 from Dublin to Brussels, returning Mon, Jun 16, priced at $50 found 1 day ago
Ryanair
Mon, Jun 16 - Thu, Jun 19
DUB
Dublin
BRU
Brussels
$56 Roundtrip, found 6 days ago
$56
Roundtrip
found 6 days ago
Select Ryanair flight, departing Mon, Jun 16 from Dublin to Brussels, returning Thu, Jun 19, priced at $56 found 6 days ago
Ryanair
Fri, Jun 6 - Mon, Jun 23
DUB
Dublin
CRL
Charleroi
$57 Roundtrip, found 3 days ago
$57
Roundtrip
found 3 days ago
Select Ryanair flight, departing Fri, Jun 6 from Dublin to Charleroi, returning Mon, Jun 23, priced at $57 found 3 days ago
Ryanair
Fri, May 9 - Mon, May 12
DUB
Dublin
BRU
Brussels
$59 Roundtrip, found 2 days ago
$59
Roundtrip
found 2 days ago
Select Ryanair flight, departing Fri, May 9 from Dublin to Brussels, returning Mon, May 12, priced at $59 found 2 days ago
Ryanair
Tue, May 6 - Sat, May 10
DUB
Dublin
BRU
Brussels
$61 Roundtrip, found 4 days ago
$61
Roundtrip
found 4 days ago
Select Ryanair flight, departing Tue, May 6 from Dublin to Brussels, returning Sat, May 10, priced at $61 found 4 days ago
Ryanair
Tue, Jul 22 - Wed, Jul 23
DUB
Dublin
BRU
Brussels
$62 Roundtrip, found 3 days ago
$62
Roundtrip
found 3 days ago
Select Ryanair flight, departing Tue, Jul 22 from Dublin to Brussels, returning Wed, Jul 23, priced at $62 found 3 days ago
Aer Lingus
Mon, May 19 - Wed, May 21
DUB
Dublin
BRU
Brussels
$81 Roundtrip, found 13 hours ago
$81
Roundtrip
found 13 hours ago
Select Aer Lingus flight, departing Mon, May 19 from Dublin to Brussels, returning Wed, May 21, priced at $81 found 13 hours ago
Scandinavian Airlines
Fri, May 23 - Thu, May 29
DUB
Dublin
BRU
Brussels
$186 Roundtrip, found 16 hours ago
$186
Roundtrip
found 16 hours ago
Select Scandinavian Airlines flight, departing Fri, May 23 from Dublin to Brussels, returning Thu, May 29, priced at $186 found 16 hours ago
Swiss International Air Lines
Wed, Nov 19 - Sat, Nov 22
DUB
Dublin
BRU
Brussels
$213 Roundtrip, found 8 hours ago
$213
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Wed, Nov 19 from Dublin to Brussels, returning Sat, Nov 22, priced at $213 found 8 hours ago
British Airways
Thu, Oct 9 - Mon, Oct 13
DUB
Dublin
BRU
Brussels
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Oct 9 from Dublin to Brussels, returning Mon, Oct 13, priced at $225 found 2 days ago
Flights from Dublin (DUB) to Brussels (BRU)
Origin airport
Dublin
Destination airport
Brussels - National
Airlines serving
Aer Lingus, Austrian Airlines, British Airways, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Ryanair, Scandinavian Airlines, Swiss International Air Lines, Widerøe
Roundtrip price
$50
Distance
486 mi

Dublin to Brussels Flights

The cheapest times to fly from Dublin to Brussels

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dublin to Brussels are during the month of June. You can find some of the cheapest flights from Dublin to Brussels with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Dublin to Brussels

Sunday is one of the best days to book for cheap flights from Dublin to Brussels: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Dublin to Brussels

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dublin to Brussels in 2025. You can also book with separate airlines for your outbound and return journeys, from $18 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dublin to Brussels flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dublin to Brussels airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Brussels - National Airport (BRU) cost?
Cheap round-trip fares from Dublin Airport (DUB) to Brussels - National Airport (BRU) start at $50. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Ryanair flight leaving DUB on May 1 2025 and touching down at BRU. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from DUB to BRU?
The cheapest flights from DUB to BRU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
When setting off from Dublin Airport (DUB), you can catch a nonstop flight to Brussels - National Airport (BRU) with Aer Lingus.
What is the cheapest airline that flies from DUB to BRU?
Currently, the cheapest airline offering one-way flights from DUB to BRU is Ryanair. You can book a seat on this route from $25. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DUB on June 21 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
With, on average, 4 nonstop flights departing from Dublin Airport (DUB) to Brussels - National Airport (BRU) each day, you’ll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
Flights between DUB and BRU are busiest at 6 AM. For a more relaxed atmosphere and potentially cheaper prices, look for a departure that’s outside typical rush times.
What day of the week has the most flights from DUB to BRU?
Friday offers the most flights from Dublin Airport (DUB) to Brussels - National Airport (BRU). Consider jetting off on this day and you’ll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
The first flight of the day out of Dublin Airport (DUB) is at around 5:45AM UTC+0. Board this flight and you’ll land at Brussels - National Airport (BRU) at approximately 8:25AM UTC+1. The overall travel time is 1h 40m.
How long does it take to fly from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
The average flight time from DUB to BRU is 1 hour and 43 minutes, covering a total distance of 490 mi.
What airline has the least delays from DUB to BRU?
Consider booking with British Airways if you’d like to go straight from Dublin Airport (DUB) to Brussels - National Airport (BRU) without any holdups. This airline has the strongest track record for punctuality, with an on-time performance of 91%. Want to get notified of any changes? You can check your flight status using the Expedia App.
What is the best time to fly from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
Choose a flight from Dublin Airport (DUB) to Brussels - National Airport (BRU) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Brussels from Dublin Airport (DUB)?
If you’re leaving on a direct flight from Dublin Airport (DUB) to Brussels, you’ll land at either Brussels - National Airport (BRU) or Brussels South Charleroi Airport (CRL).
Is it cheaper to buy a plane ticket from Dublin Airport (DUB) to Brussels - National Airport (BRU) last-minute?
Waiting until just before your departure to book a flight from DUB to BRU generally means paying more. Although you may find some last-minute deals, there’s no guarantee. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a DUB to BRU flight and hotel package?
Securing a DUB to BRU flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dublin Airport (DUB) to Brussels - National Airport (BRU)?
If you reserved your DUB to BRU flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.