€21 Find Cheap Flights 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 to Brussels departing on 16/9. 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 for flights to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Brussels, as well as popular online travel agencies
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Flight Deals

Cheap Flights to Brussels

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 to Brussels

Thu, 2 Oct - Thu, 9 Oct
Ryanair Logo
18:25 - 21:05DUB-BRU
1h 40mdirect
Ryanair Logo
21:40 - 22:20BRU-DUB
1h 40mdirect
€35Ryanair
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Thu, 2 Oct - Thu, 9 Oct
Ryanair Logo
18:25 - 21:05DUB-BRU
1h 40mdirect
Ryanair Logo
21:40 - 22:20BRU-DUB
1h 40mdirect
€37Ryanair
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Sat, 20 Sep - Mon, 22 Sep
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€69Aer Lingus
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Thu, 18 Sep - Mon, 22 Sep
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€70Aer Lingus
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Fri, 3 Oct - Tue, 7 Oct
 Logo
14:15 - 16:55DUB-BRU
1h 40mdirect
 Logo
22:15 - 09:10BRU-DUB
11h 55m1 stop
Fri, 3 Oct - Tue, 7 Oct
 Logo
14:15 - 16:55DUB-BRU
1h 40mdirect
 Logo
22:15 - 09:10BRU-DUB
11h 55m1 stop
Mon, 6 Oct - Mon, 13 Oct
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
10:30 - 16:25BRU-ORK
6h 55m1 stop
€152Lufthansa
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Mon, 6 Oct - Mon, 13 Oct
Lufthansa Logo
17:10 - 22:35ORK-BRU
4h 25m1 stop
Lufthansa Logo
10:30 - 16:25BRU-ORK
6h 55m1 stop
€152Lufthansa
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Fri, 21 Nov - Sun, 23 Nov
KLM Logo
06:00 - 14:15ORK-BRU
7h 15m1 stop
KLM Logo
08:05 - 12:55BRU-ORK
5h 50m1 stop
€254KLM
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Tue, 30 Sep - Wed, 1 Oct
KLM Logo
17:05 - 07:30ORK-BRU
13h 25m1 stop
KLM Logo
10:25 - 22:25BRU-ORK
13h 00m1 stop
€419KLM
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Booking Insights

KAYAK's insights & trends for flights to Brussels

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

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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, 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.

Which is the cheapest airport to fly into in Brussels?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Brussels is Charleroi Brussels Airport (CRL), with an average flight price of €100.

Good to know – Book Cheap Brussels Plane Tickets

Cheapest flight€21
Flight from Dublin to Brussels Airport

When to book flights to Brussels

Are your dates flexible? Find out the best times to travel 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. The information is for flights to Brussels based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Brussels flights

  • Which Brussels airport is closest to central Brussels?

    Out of the 2 airports in Brussels, Brussels Airport is the nearest to the city center (11 km). You'll travel 44 km to reach the center of Brussels if you land in Charleroi Brussels

  • How much is a flight to Brussels?

    On average, a flight to Brussels costs €101. The cheapest price found on KAYAK in the last 2 weeks cost €35 and departed from Dublin Airport.

  • What is the cheapest day to fly to Brussels?

    Based on KAYAK data, the cheapest day to fly to Brussels is Wednesday where round-trip tickets can be as cheap as €88. On the other hand, the most expensive day to fly is Monday, where round-trip prices are €355 on average.

  • How does KAYAK find such low prices on flights 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 to Brussels.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Brussels?

    The cheapest time of day to fly to Brussels is generally in the evening, when round-trip flights cost €136 on average. The most expensive time of day to fly to Brussels is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €163.

  • How many direct flights to Brussels are there each week?

    Each week there are around 36 direct flights from within Ireland to Brussels. The most common day for departures is Friday, with 19% of flights taking off on this day.

Top tips for finding cheap flights to Brussels

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Brussels flight deals.

Prefer to fly direct to Brussels?

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

Direct departures

Ireland to Brussels

Monday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Tuesday

ANA, AccesRail, Aegean Airlines, +83 more

ANA, AccesRail, +84 more

Wednesday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Friday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Saturday

ANA, AccesRail, Aegean Airlines, +83 more

ANA, AccesRail, +84 more

Sunday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

See more direct flights

Direct returns

Brussels to Ireland

Monday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Tuesday

ANA, AccesRail, Aegean Airlines, +83 more

ANA, AccesRail, +84 more

Wednesday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Friday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Saturday

ANA, AccesRail, Aegean Airlines, +83 more

ANA, AccesRail, +84 more

Sunday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

See more direct flights

Reviews of the top airline flying to Brussels

 
See real verified KAYAK customer reviews for airlines flying to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Brussels. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 1221 reviews
7.1Comfort
6.9Entertainment
6.5Food
8.0Crew
7.3Boarding
Airline reviews

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.

6.0 GoodGail, Aug 2025DUB - IOM
Read more Aer Lingus reviews

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.

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

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

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

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.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

Charging for coffee on a business class fare??? And to not even mention it? Inexcusable. Boarding and disembarking was pathetic. Could not use a jetway on either end. Had to use stairs and walk across tarmac at origination and use stairs and be bussed to terminal at destination.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

Everything you need to know for your flight to Brussels

Cabin class types available on flights to Brussels

Cabin classes available on flights to Brussels. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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