€29 Find Cheap Flights from Dublin to Belgium

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 Belgium departing on 1/7. 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

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Best Belgium Flight Deals from Dublin

Cheapest return prices found by our users on KAYAK in the last 72 hours
Brussels
Brusselsdirect€30
Brussels
Brusselsdirect€30

Cheap Flights from Dublin to Belgium

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

Mon, 7 Jul - Thu, 24 Jul
Ryanair Logo
06:30 - 09:00DUB-BRU
1h 30mdirect
Ryanair Logo
21:40 - 22:20BRU-DUB
1h 40mdirect
€37Ryanair
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Sun, 27 Jul - Sun, 3 Aug
Ryanair Logo
06:25 - 09:05DUB-BRU
1h 40mdirect
Ryanair Logo
09:45 - 10:25BRU-DUB
1h 40mdirect
€39Ryanair
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Sun, 27 Jul - Sun, 3 Aug
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:30 - 22:05BRU-DUB
1h 35mdirect
€62Aer Lingus
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Sun, 29 Jun - Tue, 1 Jul
 Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
 Logo
22:20 - 23:00BRU-DUB
1h 40mdirect
Thu, 6 Nov - Mon, 10 Nov
Aer Lingus Logo
15:30 - 18:15DUB-BRU
1h 45mdirect
Aer Lingus Logo
10:15 - 11:00BRU-DUB
1h 45mdirect
€90Aer Lingus
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Fri, 31 Oct - Mon, 3 Nov
 Logo
06:20 - 09:05DUB-BRU
1h 45mdirect
 Logo
14:00 - 12:05BRU-DUB
23h 05m1 stop
Thu, 6 Nov - Sun, 9 Nov
Scandinavian Airlines Logo
11:30 - 18:40DUB-BRU
6h 10m1 stop
Scandinavian Airlines Logo
19:45 - 10:45BRU-DUB
16h 00m1 stop
€152Scandinavian Airlines
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Thu, 7 Aug - Mon, 11 Aug
Scandinavian Airlines Logo
20:15 - 09:40DUB-BRU
12h 25m1 stop
Scandinavian Airlines Logo
10:20 - 18:15BRU-DUB
8h 55m1 stop
€159Scandinavian Airlines
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Tue, 7 Oct - Thu, 9 Oct
Lufthansa Logo
10:40 - 10:20DUB-BRU
22h 40m1 stop
Lufthansa Logo
09:30 - 22:15BRU-DUB
13h 45m1 stop
€174Lufthansa
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Sun, 28 Sep - Thu, 9 Oct
Lufthansa Logo
05:55 - 12:45DUB-BRU
5h 50m1 stop
Lufthansa Logo
09:35 - 16:55BRU-DUB
8h 20m1 stop
€183Lufthansa
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KAYAK's insights & trends for Dublin to Belgium flights

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

What is the cheapest Dublin to Belgium flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Dublin to Belgium.

The cheapest ticket to Belgium from Dublin found in the last 72 hours was to Brussels, at €70 return. The most popular route is from Dublin (DUB) to Brussels Bruxelles-National Airport (BRU), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €70.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin to Belgium, 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 Belgium is January, when tickets cost €64 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of return tickets is €126 and €118 respectively.

What’s the cheapest day of the week to fly from Dublin to Belgium?

The average price of all round-trip flights from Dublin to Belgium clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Dublin to Belgium, look for departures on Wednesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Belgium, Thursday is the cheapest day to fly and Wednesday is the most expensive.

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

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 Belgium, 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 Belgium, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.


Good to know

Low seasonMarch
High seasonJuly
Cheapest flight€29
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 26% lower on average.
Flight from Dublin to Charleroi Brussels

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Dublin to Belgium?

    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 Belgium.

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

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

  • What is the Hacker Fare option on flights from Dublin to Belgium?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Dublin to Belgium 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 from Dublin to Belgium?

    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 from Dublin to Belgium 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 Belgium?

    The cheapest time of day to fly to Belgium is generally in the evening, when retur flights cost €138 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the morning, which is peak travel time and where the average cost of a ticket is €152.

Top airline flying from Dublin to Belgium

 
Need help choosing which airline to fly with from Dublin to Belgium? 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.
7.1
Aer LingusOverall score based on 1117 reviews
7.9Crew
6.4Food
7.0Comfort
6.8Entertainment
7.2Boarding
Airline reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

4.0 OkayLeo, May 2025DUB - LHR
Read more Aer Lingus reviews

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

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

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