€22 Find Cheap Flights 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 Ireland to Belgium departing on 9/9. 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

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Best Belgium Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
Brussels
Brusselsdirect€33
Brussels
Brusselsdirect€33

Book Cheap Belgium Plane Tickets

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

Thu, 2 Oct - Mon, 6 Oct
Ryanair Logo
18:25 - 21:05DUB-BRU
1h 40mdirect
Ryanair Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
€33Ryanair
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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
€34Ryanair
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Thu, 2 Oct - Mon, 6 Oct
Aer Lingus Logo
17:55 - 20:40DUB-BRU
1h 45mdirect
Aer Lingus Logo
21:20 - 21:55BRU-DUB
1h 35mdirect
€64Aer Lingus
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Mon, 22 Sep - Mon, 29 Sep
 Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
 Logo
22:25 - 23:05BRU-DUB
1h 40mdirect
Wed, 24 Sep - Thu, 25 Sep
Aer Lingus Logo
06:50 - 09:40DUB-BRU
1h 50mdirect
Aer Lingus Logo
10:20 - 11:05BRU-DUB
1h 45mdirect
€73Aer Lingus
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Tue, 9 Sep - Fri, 12 Sep
 Logo
06:30 - 16:05DUB-CRL
8h 35m1 stop
 Logo
18:45 - 19:30CRL-DUB
1h 45mdirect
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
€154Lufthansa
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Sat, 11 Oct - Sat, 18 Oct
KLM Logo
06:00 - 14:35ORK-BRU
7h 35m1 stop
KLM Logo
15:05 - 22:25BRU-ORK
8h 20m1 stop
€248KLM
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Tue, 10 Feb - Tue, 17 Feb
KLM Logo
06:00 - 14:15ORK-BRU
7h 15m1 stop
KLM Logo
08:05 - 12:55BRU-ORK
5h 50m1 stop
€254KLM
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Belgium

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

What is the cheapest flight to Belgium?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Belgium from Ireland found in the last 72 hours was to Brussels Bruxelles-National Airport, at €96 return. The most popular route is Dublin (DUB) to Brussels Bruxelles-National Airport (BRU) and the cheapest return airline ticket found on this route in the last 72 hours was €96.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland 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 Ireland to Belgium is January, when tickets cost €65 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is €127 and €106 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 Ireland 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€22
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly and prices are also 18% lower on average.
Flight from Dublin to Brussels Airport

FAQs - booking Belgium flights

  • How does KAYAK find such low prices on flights from Ireland 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 Ireland to Belgium.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland 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 Ireland 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 Ireland 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 Ireland 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 Ireland 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 day to fly to Belgium?

    Based on KAYAK data, the cheapest day to fly to Belgium is Wednesday when return tickets can be as cheap as €85. On the other hand, the most expensive day to fly is Monday, when return prices are €357 on average.

  • 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 €134 on average. Morning departures are around 14% 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.

Top tips for finding cheap flights to Belgium

  • Looking for cheap airfare to Belgium? 25% of our users found return tickets to Belgium for the following prices or less: From Dublin €101
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Belgium flight deals.

Reviews of the top airline flying to Belgium

 
Need help choosing which airline to fly with from Ireland 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 1239 reviews
6.5Food
7.1Comfort
8.0Crew
6.9Entertainment
7.3Boarding
Airline reviews

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

2.0 MediocreAnonymous, Aug 2025DUB - SEA
Read more Aer Lingus reviews

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

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

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

We booked a flight from FCO(Rome) with a stop over at DUB(Dublin) going to JFK. Boarding from Rome was kind of chaotic since the airport I guess is very small and we needed to shuttle to the airplane. The gate agent just let everyone and anyone go without using the sections so that took a lot longer than usual boarding. From drinking to JFk boarding was good and organized. Amazingly the flights was very smooth sailing and we’ve flown American big airplane to small companies before. The aircraft’s itself is on the older side, can’t complain tho because the plane ride wa smooth. For a 3 hour plane ride, nothing was complimentary. But for the longer leg of the plane complimentary snacks, meals and drinks were provided which was great. The food wasn’t bad either. I would fly with them again, great price and good service.

Everything went well. I made my connection which is always a concern.

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.

Everything you need to know for your flight to Belgium

Cabin class types available on flights to Belgium

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

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