Cheap flights from Ireland to Brussels from €18
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 Brussels departing on 4/8. 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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Ryanair flights from Ireland to Brussels Bruxelles-National Airport
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Aer Lingus flights from Ireland to Brussels Bruxelles-National Airport
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How to get the cheapest flight ticket from Ireland to Brussels Bruxelles-National Airport
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 Brussels Bruxelles-National Airport?
In general, January is the cheapest month to fly from Ireland to Brussels Bruxelles-National Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €63. If you aren’t able to travel to Brussels Bruxelles-National Airport during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of €65.
What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?
The cheapest day to depart on your flight to Brussels Bruxelles-National Airport is on a Wednesday when prices can be found for as low as €99. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Brussels Bruxelles-National Airport on Monday is €357.
What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?
Our data shows that the cheapest Ireland to Brussels Bruxelles-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Brussels Bruxelles-National Airport in the afternoon for as low as €117. Flights to Brussels Bruxelles-National Airport are more costly in the morning, with an average ticket price of €129. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Ireland to Brussels Bruxelles-National flight route?
Fly from Dublin to Brussels Bruxelles-National for the best Ireland - Brussels Bruxelles-National flight prices
How far in advance should I book a flight to Brussels Bruxelles-National Airport?
You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around €94 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Ireland for as low as €59 on momondo.
What cabin class options are available on Ireland to Brussels Bruxelles-National flights?
There are 1 cabin classes available to choose from on Ireland to Brussels Bruxelles-National 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 Brussels Bruxelles-National Airport on average per day?
The number of flights available between Ireland and Brussels Bruxelles-National Airport is 5 per day as of July 2025. The most frequent departure time is 17:00, with 53% of daily flights leaving in the afternoon.
How many flights depart from Ireland to Brussels Bruxelles-National Airport on average per week?
As of July 2025, there are 39 flights per week flying from Ireland to Brussels Bruxelles-National Airport. The most common day of the week flights depart is Fri, with 23% of flights taking off on this day.
Cheap Ireland to Brussels Bruxelles-National Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Brussels Bruxelles-National Airport
When did momondo last update prices for flights from Ireland to Brussels Bruxelles-National Airport?
Prices for flights from Ireland to Brussels Bruxelles-National Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ireland to Brussels Bruxelles-National Airport?
As of July 2025, there is 1 operator available to choose from for flights from Ireland to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Ireland to Brussels Bruxelles-National Airport?
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 Brussels Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Brussels Bruxelles-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Brussels Bruxelles-National Airport?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Brussels Bruxelles-National Airport is Airbus A320-100/200, representing 36.63% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 29.34%, Boeing 737 MAX 8 at 17.53%, and Boeing 757-200 at 4.51%.
Best airlines flying from Ireland to Brussels Bruxelles-National Airport
Compare and see reviews for airlines that fly from Ireland to Brussels Bruxelles-National Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €59 | Free Cancellation | Rating 7.1 1,148 reviews |
Travelling to a place near Brussels?
Book flights to Brussels if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to Brussels?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Brussels. momondo saves you time and could save you money on your trip.
Can I find flights from Ireland to Brussels with flexible booking policies on momondo?
Yes. All flights to Brussels 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 Brussels?
momondo helps you find the best flight between Ireland and Brussels by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ireland to Brussels right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ireland to Brussels flights. All you need is a valid email address and we will do the rest; it is that quick and easy.