Cheap flights from Ireland to Belgium from £21
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belgium departing on 15/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ireland to Belgium
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Belgium?
The month of January is, on average, the cheapest month to fly to Belgium from Ireland, with most prices found around £54. If you aren’t able to travel during the month of January, then book flights to Belgium from Ireland during September instead. Flights to Belgium in September, while not as cheap as those in January, still average around £57.
What is the cheapest day to depart on your flight to Belgium?
The cheapest day to depart from Ireland to Belgium is on a Sunday when prices can be found for as low as £53. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Belgium on Saturday is £88.
What is the cheapest time of day to depart on your flight to Belgium?
Our most recent data shows that the best time of day to fly to Belgium is in the afternoon. Flights from Ireland to Belgium during this time can be as low as £65. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £80 on average. Flights to Belgium from Ireland in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Ireland to Belgium flight route?
Fly from Dublin to Brussels Bruxelles-National for the best Ireland - Belgium flight prices
How far in advance should I book a flight to Belgium?
You are more likely to see cheaper flights to Belgium from Ireland when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around £82 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Ireland for as low as £51 on momondo.
What cabin class options are available on Ireland to Belgium flights?
There are 1 cabin classes available to choose from on Ireland to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Ireland to Belgium on average per day?
As of June 2025, there are 5 flights per day flying from Ireland to Belgium. The most common time of day flights depart is 17:00, with 51% of flights taking off in the afternoon.
How many flights depart from Ireland to Belgium on average per week?
39 flights are operational weekly from Ireland to Belgium as of June 2025. The most popular departure day for this route is Thu, with 23% of flights per week taking off on this day.
Cheap Ireland to Belgium flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Belgium
When did momondo last update prices for flights from Ireland to Belgium?
Prices for flights from Ireland to Belgium are refreshed on a daily basis.
How many operators does momondo search for flights from Ireland to Belgium?
The number of operators available for flights from Ireland to Belgium is 2 as of June 2025.
How old do you have to be to fly from Ireland to Belgium?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belgium.
What documentation or ID do you need to fly to Belgium?
The necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Belgium?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ireland to Belgium is Airbus A320-100/200 (37.30% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (30.54%), Boeing 737 MAX 8 (19.05%), and Boeing 757-200 (3.24%).
Best airlines flying from Ireland to Belgium
Compare and see reviews for airlines that fly from Ireland to Belgium with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £28 | Free Cancellation | Rating 6.8 5,121 reviews | |||
| PriceFrom £51 | Free Cancellation | Rating 7.1 1,118 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ireland to Belgium?
Finding the right flight to Belgium from Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belgium quick and easy, saving you time and money.
Can I find flights from Ireland to Belgium with flexible booking policies on momondo?
Yes. All flights to Belgium from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ireland to Belgium?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belgium from Ireland.
I’m not ready to book a flight from Ireland to Belgium right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ireland to Belgium now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belgium and let you know when they change.