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Cheap flights from Ireland to Belgium from £23

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — BRU
29 Apr — 6 May1
1 adult

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 24 April 2025.

Round-trip from

£38

One-way from

£23

Popular in

December

Cheapest in

January

Average price

£90

Good round-trip deal

£44 or less
Ryanair
  • Ryanair
  • 7/6-14/6
  • Nonstop
  • 3h 20m total
  • Ireland to Belgium
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Ryanair
  • Ryanair
  • 21/7
  • Nonstop
  • 1h 30m total
  • Ireland to Belgium
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£2 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Ireland to Belgium.
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Find flight deals from Ireland to Belgium

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 24 April 2025.

Wed 30/406:20DUB - BRU
Nonstop1h 40mRyanair
Fri 2/520:45BRU - DUB
Nonstop1h 40mRyanair
Deal found 23/4£48
Mon 19/506:50DUB - BRU
Nonstop1h 50mAer Lingus
Wed 21/521:20BRU - DUB
Nonstop1h 35mAer Lingus
Deal found 23/4£62
Thu 2/1011:45DUB - BRU
1 stop5h 30mMultiple Airlines
Sun 5/1021:30BRU - DUB
Nonstop1h 40mMultiple Airlines
Deal found 23/4£102
Fri 9/517:45DUB - BRU
1 stop13h 25mLufthansa
Sat 10/510:30BRU - DUB
1 stop7h 25mLufthansa
Deal found 22/4£129
Fri 23/512:20DUB - BRU
1 stop5h 00mScandinavian Airlines
Fri 30/510:20BRU - DUB
1 stop8h 55mScandinavian Airlines
Deal found 23/4£145
Fri 4/717:20DUB - BRU
1 stop3h 55mKLM
Thu 10/715:05BRU - DUB
1 stop6h 10mKLM
Deal found 23/4£158
Sat 7/608:40DUB - BRU
1 stop9h 35mSWISS
Sat 14/620:00BRU - DUB
1 stop12h 55mSWISS
Deal found 23/4£167
Thu 4/906:05DUB - BRU
2 stops16h 20mAustrian Airlines
Mon 8/917:30BRU - DUB
2 stops29h 45mAustrian Airlines
Deal found 23/4£284
Fri 2/512:20DUB - BRU
2 stops20h 05mLOT
Sun 4/519:35BRU - DUB
2 stops23h 40mLOT
Deal found 23/4£687
Wed 7/508:15DUB - BRU
1 stop22h 10mQatar Airways
Sat 10/510:20BRU - DUB
Nonstop1h 45mQatar Airways
Deal found 22/4£837
Mon 23/600:01DUB - BRU
1 stop9h 19mAegean Airlines
Mon 30/611:15BRU - DUB
1 stop12h 50mAegean Airlines
Deal found 23/4£947

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 24 April 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 7/6

18:50-21:30

Nonstop1h 40m

Brussels Bruxelles-National

Sat 14/6

09:55-10:35

Nonstop1h 40m

£50

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 19/5

06:50-09:40

Nonstop1h 50m

Brussels Bruxelles-National

Wed 21/5

21:20-21:55

Nonstop1h 35m

£62

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 2/10

11:45-18:15

1 stop5h 30m

Brussels Bruxelles-National

Sun 5/10

21:30-22:10

Nonstop1h 40m

£102

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 9/5

17:45-08:10

1 stop13h 25m

Brussels Bruxelles-National

Sat 10/5

10:30-16:55

1 stop7h 25m

£129

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 23/5

12:20-18:20

1 stop5h 00m

Brussels Bruxelles-National

Fri 30/5

10:20-18:15

1 stop8h 55m

£145

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Fri 4/7

17:20-22:15

1 stop3h 55m

Brussels Bruxelles-National

Thu 10/7

15:05-20:15

1 stop6h 10m

£158

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Sat 7/6

08:40-19:15

1 stop9h 35m

Brussels Bruxelles-National

Sat 14/6

20:00-07:55

1 stop12h 55m

£167

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Thu 4/9

06:05-23:25

2 stops16h 20m

Brussels Bruxelles-National

Mon 8/9

17:30-22:15

2 stops29h 45m

£284

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Wed 7/5

08:15-07:25

1 stop22h 10m

Brussels Bruxelles-National

Sat 10/5

10:20-11:05

Nonstop1h 45m

£837

DublinBrussels

DUB - BRU

DUBBRU

Dublin

Mon 23/6

00:01-10:20

1 stop9h 19m

Brussels Bruxelles-National

Mon 30/6

11:15-23:05

1 stop12h 50m

£947

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 19 results
1
2

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, January is the cheapest month in which you can book a flight from Ireland to Belgium (average of £117). Flying from Ireland to Belgium in July is currently the most expensive (average of £172). 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 24 April 2025.

When flying from Ireland to Belgium, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 24 April 2025.

The most flights from IE0 to BE0 are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Belgium by month

Plan your trip to Belgium by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belgium ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. August is typically the driest time to visit Belgium when rainfall is around 40.0 mm.

Temperature in Belgium by month

Plan your trip to Belgium by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belgium, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 3.0 C).

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 24 April 2025.
Get a feel of what it's like to fly with Aegean Airlines, KLM and LOT from Ireland to Belgium by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very Good
736 reviews
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,333 reviews
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,066 reviews
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.6
Good
780 reviews
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,582 reviews
Aegean Airlines
8.1
Very Good
736 reviews
Check prices

Entertainment

6.9

Food

7.3

Crew

8.6

Comfort

7.8

Overall

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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.

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

    £23 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Scandinavian Airlines and KLM, with prices starting from £64 and £76, 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, January is the cheapest month in which you can book a flight from Ireland to Belgium (average of £117). Flying from Ireland to Belgium in July is currently the most expensive (average of £172). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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 24 April 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£73FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£53Average£82FlexibilityNo 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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