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Cheap flights from Ireland to Belgium from £25

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BRU
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Belgium

Keep the following information in mind while searching for Ireland to Belgium flight deals. Data was last updated 5 November 2025.

Round-trip from

£56

One-way from

£25

Popular in

December

Cheapest in

January

Average price

£106

Good round-trip deal

£80 or less

Good one-way deal

£32 or less
Ryanair
  • Ryanair
  • 26/2-8/3
  • Nonstop
  • 3h 30m total
  • Ireland to Belgium
Search Deals
Ryanair
  • Ryanair
  • 2/12
  • Nonstop
  • 1h 45m total
  • Ireland to Belgium
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ireland to Belgium.
Search Deals
Price to beat on a one-way flight from Ireland to Belgium.
Search Deals

Find flight deals from Ireland to Belgium

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Belgium
Explore the most affordable flight options available from Ireland to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Wed 19/1113:40DUB - BRU
Nonstop1h 45mMultiple Airlines
Sun 23/1110:15BRU - DUB
Nonstop1h 45mMultiple Airlines
Deal found 3/11£59
Wed 10/1205:50DUB - BRU
Nonstop1h 45mRyanair
Fri 12/1209:40BRU - DUB
Nonstop1h 45mRyanair
Deal found 4/11£60
Thu 11/1206:05DUB - BRU
Nonstop1h 45mRyanair
Tue 30/1209:50BRU - DUB
Nonstop1h 45mRyanair
Deal found 3/11£67
Sat 13/1213:25DUB - BRU
Nonstop1h 45mRyanair
Mon 15/1217:25BRU - DUB
Nonstop1h 45mRyanair
Deal found 2/11£76
Thu 11/1207:05DUB - BRU
1 stop7h 40mMultiple Airlines
Tue 30/1209:50BRU - DUB
Nonstop1h 45mMultiple Airlines
Deal found 3/11£110
Thu 27/1106:05DUB - BRU
Nonstop1h 45mRyanair
Sun 30/1109:40BRU - DUB
Nonstop1h 45mRyanair
Deal found 3/11£116
Thu 18/1206:50DUB - BRU
Nonstop1h 45mMultiple Airlines
Thu 25/1210:20BRU - DUB
1 stop9h 00mMultiple Airlines
Deal found 3/11£122
Thu 11/1211:30DUB - BRU
1 stop6h 10mScandinavian Airlines
Tue 30/1210:20BRU - DUB
1 stop9h 00mScandinavian Airlines
Deal found 3/11£143
Thu 18/1219:30DUB - BRU
1 stop13h 10mScandinavian Airlines
Thu 25/1210:20BRU - DUB
1 stop9h 00mScandinavian Airlines
Deal found 3/11£145

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Belgium that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 November 2025.
Use the filters below to find and compare flights from Ireland to Belgium that are best for you.

Fly from

Ireland

Fly to

Belgium

Route

Depart

Return

Price

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 13/12

13:25-16:10

Nonstop1h 45m

Brussels Bruxelles-National

Mon 15/12

17:25-18:10

Nonstop1h 45m

£76

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 20/3

15:10-17:55

Nonstop1h 45m

Brussels Bruxelles-National

Sun 22/3

09:40-10:25

Nonstop1h 45m

£76

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 27/11

06:05-08:50

Nonstop1h 45m

Brussels Bruxelles-National

Sun 30/11

09:40-10:25

Nonstop1h 45m

£116

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 10/12

12:30-08:55

2 stops19h 25m

Brussels Bruxelles-National

Fri 12/12

09:40-10:25

Nonstop1h 45m

£124

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sun 28/12

06:20-09:05

Nonstop1h 45m

Brussels Bruxelles-National

Tue 30/12

18:25-19:10

Nonstop1h 45m

£124

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 16/1

11:30-18:40

1 stop6h 10m

Brussels Bruxelles-National

Sun 18/1

18:55-11:45

1 stop17h 50m

£136

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 6/12

17:15-22:20

1 stop4h 05m

Brussels Bruxelles-National

Sun 7/12

10:45-16:20

1 stop6h 35m

£149

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 6/12

17:15-22:20

1 stop4h 05m

Brussels Bruxelles-National

Mon 8/12

08:05-12:40

1 stop5h 35m

£149

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 26/11

17:15-22:20

1 stop4h 05m

Brussels Bruxelles-National

Wed 3/12

10:45-16:20

1 stop6h 35m

£150

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 2/2

08:50-14:15

1 stop4h 25m

Brussels Bruxelles-National

Thu 5/2

08:05-12:40

1 stop5h 35m

£150

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 23 results
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Best time to book a flight from Ireland to Belgium

Have a flexible travel schedule? Discover the best time to fly to Belgium from Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Belgium

What is the cheapest month to book a flight from Ireland to Belgium?

Currently, October is the cheapest month in which you can book a flight from Ireland to Belgium (average of £15). Flying from Ireland to Belgium in December is currently the most expensive (average of £51). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IE to BE?

Find hourly flight availability from Ireland to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 November 2025.

When flying from Ireland to Belgium, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 62% versus a flight in the morning.

Weekly flight availability from Ireland to Belgium

Explore weekly flight availability from Ireland to Belgium. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 5 November 2025.

The most flights from IE0 to BE0 are scheduled on a Monday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgium. Reviews last updated 5 November 2025.
Read through reviews of airlines operating flights from Ireland to Belgium, such as Aer Lingus and Ryanair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Crew

8.0

Boarding

7.4

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Crew

8.0

Boarding

7.4

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Ryanair
6.8
Okay
5,186 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Crew

8.0

Boarding

7.4

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Belgium. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ireland to Belgium?

    Airlines like Ryanair fly from Ireland to Belgium in about 1h 45m. The time it takes to get you to your destination is usually consistent. The distance from Ireland to Belgium is about 486 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Ireland to Belgium one-way?

    £32 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Aer Lingus and Scandinavian Airlines, with prices starting from £32 and £64, respectively.

  • Can I find deals for flights from Ireland to Belgium that include hotel bookings?

    Yes. In addition to deals on Ireland to Belgium flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Belgium?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Belgium.

  • Can I find deals for business class flights from Ireland to Belgium?

    Yes. Cheapflights offers flight deals from Ireland to Belgium by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to Belgium?

    Currently, October is the cheapest month in which you can book a flight from Ireland to Belgium (average of £15). Flying from Ireland to Belgium in December is currently the most expensive (average of £51). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ireland to Belgium

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ireland to Belgium

Discover the top 2 airlines that operate flights from Ireland to Belgium. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£69FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£48Average£73FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Belgium?

Cheapflights helps you search for flights from Ireland to Belgium via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Belgium?

Cheapflights simply makes it quick and affordable to book flights from Ireland to Belgium by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ireland to Belgium with no change fees?

Certainly. Search results for flights to Belgium from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ireland to Belgium become cheaper?

Of course! You can now track prices for flights from Ireland to Belgium and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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