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

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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?

The cheapest ticket to Ireland from Belgium found in the last 5 days was to Dublin, at €52 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 €52.

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

The cheapest month for flights from Belgium to Ireland is March, when tickets cost €40 (return) on average. On the other hand, the most expensive months are April and November, when the average cost of round-trip tickets is €144 and €107 respectively.

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

The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €167 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 €197.

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

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 27% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

January

Cheapest flight

€17
Best time to beat the crowds but there is an average 8% 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 Thursday when return tickets can be as cheap as €161. On the other hand, the most expensive day to fly is Friday, when return prices are €565 on average.

Reviews of the 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.
6.9
RyanairOverall score based on 5469 reviews
5.7Entertainment
7.5Crew
6.7Boarding
6.0Food
6.5Comfort
Airline reviews

Had no disruptions or delays. Did not order any food.

10.0 ExcellentSteve, Jul 2026
Read more Ryanair reviews

Had no disruptions or delays. Did not order any food.

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.

Everything you need to know for your flight to Ireland

Cabin class types available on flights to Ireland