€28 Find Cheap Flights from Belgium to Ireland

1 adult
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KAYAK's insights & trends for flights to Ireland

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

What is the cheapest flight to Ireland?

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

The cheapest ticket to Ireland from Belgium found in the last 72 hours was to Dublin, at €76 return. The most popular route is Brussels Bruxelles-National Airport (BRU) to Dublin (DUB) and the cheapest return airline ticket found on this route in the last 72 hours was €76.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Belgium to Ireland, 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 Belgium to Ireland is May, when tickets cost €67 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is €125 and €110 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ireland, 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 Belgium to Ireland, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight€28
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from Charleroi Brussels to Dublin

FAQs for booking flights from Belgium to Ireland

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

    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 Belgium to Ireland.

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

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

    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 Belgium to Ireland 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 Belgium to Ireland?

    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 Belgium to Ireland 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 Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Thursday when return tickets can be as cheap as €114. On the other hand, the most expensive day to fly is Wednesday, when return prices are €707 on average.

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

    The cheapest time of day to fly to Ireland is generally in the morning, when round-trip flights cost €250 on average. The most expensive time of day to fly to Ireland is generally at night, which is peak travel time and where the average cost of a ticket is €287.

Top airline flying from Belgium to Ireland

 
Need help choosing which airline to fly with from Belgium to Ireland? 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
7.2Boarding
7.0Comfort
6.4Food
6.8Entertainment
Airline reviews

There was no room in the seats, smallest room we've ever had and the food was awful.

6.0 GoodAnonymous, May 2025CDG - DUB
Read more Aer Lingus reviews

There was no room in the seats, smallest room we've ever had and the food was awful.

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.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

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!

Book cheap flights from Belgium to Ireland

Recent return flight deals

20/8Wed
directRyanair
1h 40mBRU-DUB
24/8Sun
directRyanair
1h 40mDUB-BRU
€33
31/7Thu
directRyanair
1h 40mBRU-DUB
4/8Mon
directRyanair
1h 35mDUB-BRU
€38
8/8Fri
direct
1h 35mBRU-DUB
10/8Sun
direct
1h 40mDUB-BRU
€65
3/8Sun
directAer Lingus
1h 35mBRU-DUB
9/8Sat
directAer Lingus
1h 50mDUB-BRU
€68
7/8Thu
directAer Lingus
1h 35mBRU-DUB
9/8Sat
directAer Lingus
1h 50mDUB-BRU
€69
7/9Sun
direct
1h 35mBRU-DUB
13/9Sat
direct
1h 40mDUB-BRU
€70
13/8Wed
1 stopScandinavian Airlines
8h 55mBRU-DUB
20/8Wed
1 stopScandinavian Airlines
13h 00mDUB-BRU
€166
17/8Sun
1 stopLufthansa
9h 00mBRU-DUB
26/8Tue
1 stopLufthansa
8h 10mDUB-BRU
€176
19/8Tue
1 stopScandinavian Airlines
17h 40mBRU-DUB
22/8Fri
1 stopScandinavian Airlines
13h 35mDUB-BRU
€176
24/8Sun
1 stopLufthansa
8h 55mBRU-ORK
29/8Fri
2 stopsLufthansa
16h 20mORK-BRU
€424

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Recent one-way flight deals

17/6Tue
directRyanair
1h 45mCRL-DUB
€28
31/7Thu
directRyanair
1h 40mBRU-DUB
€29
8/8Fri
directAer Lingus
1h 35mBRU-DUB
€34
9/7Wed
directAer Lingus
1h 35mBRU-DUB
€67
21/8Thu
1 stop
13h 10mBRU-ORK
€86
12/8Tue
1 stop
10h 25mBRU-DUB
€89
31/7Thu
1 stopKLM
8h 20mBRU-DUB
€91
12/8Tue
1 stopScandinavian Airlines
8h 55mBRU-DUB
€106
8/8Fri
1 stopKLM
5h 15mBRU-DUB
€116
6/7Sun
1 stopScandinavian Airlines
22h 05mBRU-DUB
€152

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Last minute flights to Ireland

Last minute flight, train and bus deals

16/6Mon
directRyanair
1h 45mCRL-DUB
17/6Tue
directRyanair
1h 40mDUB-CRL
€63
16/6Mon
directRyanair
1h 45mCRL-DUB
17/6Tue
multi-stopRyanair
8h 55mDUB-CRL
€88
17/6Tue
direct
1h 45mCRL-DUB
21/6Sat
multi-stop
8h 35mDUB-CRL
€95
17/6Tue
multi-stop
7h 25mCRL-DUB
21/6Sat
multi-stop
8h 35mDUB-CRL
€130
14/6Sat
directAer Lingus
1h 45mBRU-DUB
15/6Sun
directAer Lingus
1h 50mDUB-BRU
€193
15/6Sun
multi-stopLufthansa
10h 55mBRU-DUB
4/7Fri
multi-stopLufthansa
13h 25mDUB-BRU
€206
13/6Fri
directAer Lingus
1h 35mBRU-DUB
15/6Sun
directAer Lingus
1h 50mDUB-BRU
€210
17/6Tue
multi-stopKLM
3h 25mBRU-DUB
20/6Fri
multi-stopKLM
9h 45mDUB-BRU
€232
14/6Sat
multi-stopLufthansa
5h 10mBRU-DUB
17/6Tue
multi-stopLufthansa
15h 35mDUB-BRU
€235
14/6Sat
multi-stopKLM
12h 50mBRU-DUB
24/6Tue
multi-stopKLM
10h 15mDUB-BRU
€343

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Everything you need to know for your flight to Ireland

Cabin class types available on flights to Ireland

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

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