€23 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 4/11. 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 Belgium

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Best Belgium Flight Deals from Dublin

Cheapest return prices found by our users on KAYAK in the last 72 hours
Brussels
Brusselsdirect€31
Brussels
Brusselsdirect€31

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

Sat, 4 Oct - Tue, 7 Oct
Ryanair Logo
18:50 - 21:30DUB-BRU
1h 40mdirect
Ryanair Logo
22:20 - 23:00BRU-DUB
1h 40mdirect
€31Ryanair
Find Deal
Thu, 9 Oct - Mon, 13 Oct
Ryanair Logo
07:05 - 09:45DUB-BRU
1h 40mdirect
Ryanair Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
€32Ryanair
Find Deal
Tue, 7 Oct - Tue, 14 Oct
Ryanair Logo
06:45 - 09:25DUB-BRU
1h 40mdirect
Ryanair Logo
10:00 - 10:40BRU-DUB
1h 40mdirect
€33Ryanair
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Ryanair Logo
06:20 - 09:00DUB-BRU
1h 40mdirect
Ryanair Logo
21:30 - 22:10BRU-DUB
1h 40mdirect
€34Ryanair
Find Deal
Thu, 9 Oct - Sun, 12 Oct
Ryanair Logo
07:05 - 09:45DUB-BRU
1h 40mdirect
Ryanair Logo
09:45 - 10:25BRU-DUB
1h 40mdirect
€36Ryanair
Find Deal
Sun, 12 Oct - Mon, 13 Oct
 Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
 Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
Fri, 7 Nov - Sun, 9 Nov
Aer Lingus Logo
06:50 - 09:35DUB-BRU
1h 45mdirect
Aer Lingus Logo
10:15 - 11:00BRU-DUB
1h 45mdirect
€67Aer Lingus
Find Deal
Sat, 4 Oct - Wed, 8 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€68Aer Lingus
Find Deal
Sat, 4 Oct - Tue, 7 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€69Aer Lingus
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
10:20 - 11:05BRU-DUB
1h 45mdirect
€84Aer Lingus
Find Deal
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Belgium from Dublin found in the last 72 hours was to Brussels, at €82 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 €82.

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 November, when the average cost of return tickets is €126 and €104 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, Wednesday is the cheapest day to fly and Friday 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 a flight from Dublin to Belgium, 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.

Good to know

Low seasonMarch
Cheapest flight€23
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly and prices are also 14% lower on average.
Flight from Dublin to Brussels Airport

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 €130 on average. Morning departures are around 19% more expensive than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €163.

Reviews of the 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.
7.2
Aer LingusOverall score based on 1271 reviews
6.9Entertainment
6.5Food
7.1Comfort
7.3Boarding
8.0Crew
Airline reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

2.0 MediocreAnonymous, Sept 2025DUB - EWR
Read more Aer Lingus reviews

All of my Aer Lingus flights were delayed. The seat I purchased with extra leg room was exactly the same as my previous seat that was free. I would appreciate my money back.

Horrible. I had to wait in Dublin for 4 hours for the next connecting flight which took my to London and than i had to wait 3 hours for the flight to Dusseldorf

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

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.

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

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.