€17 Find Cheap Flights from Belgium to Ireland – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belgium to Ireland departing on 11/8. 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, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Booking Insights

KAYAK's insights & trends for flights to Ireland

Get data-powered insights and trends into 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 5 days.

The cheapest ticket to Ireland from Belgium found in the last 5 days was to Cork, at €66 return. The most popular route is Brussels Bruxelles-National Airport (BRU) to Dublin (DUB) and the cheapest return ticket found on this route in the last 5 days was €75.

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 March, when tickets cost €16 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is €25 and €24 respectively.

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

The average price for all round-trip flights from Belgium to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €155 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the morning, which is peak travel time and where the average cost of a ticket is €201.

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 a flight from Belgium to Ireland, you should book around 2 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Which is the cheapest airport to fly into in Ireland?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ireland is Dublin Airport (DUB), with an average flight price of €44.

Good to know

Low seasonJanuary
Cheapest flight€17
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Charleroi Brussels to Cork

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 Wednesday when return tickets can be as cheap as €155. On the other hand, the most expensive day to fly is Friday, when return prices are €575 on average.

Reviews of the top airlines 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.
7.3
Aer LingusOverall score based on 1653 reviews
7.0Entertainment
8.1Crew
7.2Comfort
7.4Boarding
6.6Food
Airline reviews

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

8.0 ExcellentAnonymous, Jul 2026
LAX - DUB
Read more Aer Lingus reviews

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

The overall sports experience wasn’t even OK. The fact I canceled when I was on my way to get food at the airport again this was a international flight. I was out of the country and I did have work the next day. It was very inconvenience and very last minute and it was very poorly communicated.

Informed of delay the day of flight resulted in us getting to our destination hours later. Had we been notified earlier plans could have been rearranged. No airline employee could tell us why there was such a delay. Smells of trying to hide the real reason Food was not offered to us. Stewardess walked right passed us offering others drinks and food. I thought on a short flight maybe they paid for it so I didn’t ask. Turns out they should have offered us something Seats were very hard and uncomfortable

Terrible. The flight from Athens was delayed and we missed the connected flight to USA. They will put service was unacceptable, we had insufficient information, and the whole experience was awful.

My luggage was lost and still has not been found. Apparently there is a disconnect between Aer Lingus and American Airlines regarding the transfer of luggage that needs to be corrected.

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

Flight delayed 45 minutes almost caused us to miss connection to transatlantic flight.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

A caveat, we flew during the ransomware attack that hacked the boarding and luggage tracking systems. I wouldn't ever be angry at the employees for that, but I WOULD be (and am) angry that communication was incredibly poor, that we got few live updates, and that the employees seemed uninformed and ill-equipped to handle the situation. Clear, honest, open communication and instructions would have benefited the situation. Unfortunately, there were literally no gate agents to talk to, no airport employees to direct people, and no clear signage (the app pretty much said "we don't know what gate your flight is."). Beyond this nightmare, the security was the usual dehumanizing circus of "Security Theater" which is... as we all know... only for show and completely useless. All three airports on this journey dropped the ball so hard. The flight industry can do so much better. Aer Lingus can do so much better.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

Flight was fine, crew were good, cabin director spoke far too much; disembarking at Dublin Airport and entry into the terminal building was just dreadful, like entering the back door of a neglected factory building. What an awful impression it must give to first time visitors to Ireland.

all fine - did not have food - there was no entertainment

Delayed delayed delayed and then cancelled very late not allowing for too much time to find a room for the night

Worst experience ever. First time and last time with Ryanair. I'm not a cow.

Didn’t like anything about it we were delayed by 3 hours and sat on the plane when leaving Dublin. On the way back to Dublin we were kept in the plane on tarmac for 4.5 hours. This airline is a joke!

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.