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Cheap flights from Northern Ireland to Brussels from £123

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BRU
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Brussels

Keep the following information in mind while searching for Northern Ireland to Brussels flight deals. Data was last updated 6 November 2025.

Round-trip from

£123
3/1-10/1
  • 3/1-10/1
  • 2 total stops
  • 14h 15m total
  • Northern Ireland to Brussels
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Find flight deals from Northern Ireland to Brussels

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Brussels
Explore the most affordable flight options available from Northern Ireland to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Fri 19/1208:05BFS - CRL
1 stop7h 30mMultiple Airlines
Mon 22/1207:35CRL - BFS
1 stop12h 25mMultiple Airlines
Deal found 4/11£152
Fri 19/1216:50BHD - CRL
1 stop4h 35mMultiple Airlines
Mon 22/1207:35CRL - BHD
1 stop14h 15mMultiple Airlines
Deal found 4/11£172
Mon 17/1118:50BFS - BRU
2 stops13h 20mMultiple Airlines
Thu 20/1106:00BRU - BFS
1 stop7h 20mMultiple Airlines
Deal found 5/11£174
Sat 20/1220:00BFS - BRU
2 stops18h 30mMultiple Airlines
Sat 27/1216:45BRU - BFS
2 stops15h 00mMultiple Airlines
Deal found 5/11£226
Fri 19/1207:05BFS - BRU
1 stop5h 30mMultiple Airlines
Mon 22/1209:55BRU - BFS
1 stop10h 05mMultiple Airlines
Deal found 4/11£230
Fri 19/1207:00BHD - BRU
1 stop5h 35mMultiple Airlines
Mon 22/1209:55BRU - BHD
1 stop4h 55mMultiple Airlines
Deal found 4/11£305
Fri 19/1217:20BHD - BRU
1 stop4h 00mKLM
Mon 22/1214:45BRU - BHD
1 stop7h 15mKLM
Deal found 5/11£362
Fri 19/1211:30BHD - BRU
1 stop7h 00mBritish Airways
Mon 22/1220:45BRU - BHD
2 stops13h 30mBritish Airways
Deal found 5/11£429
Fri 19/1206:50BHD - BRU
2 stops12h 20mAer Lingus
Mon 22/1218:55BRU - BHD
2 stops42h 20mAer Lingus
Deal found 4/11£567

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Brussels 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 6 November 2025.
Use the filters below to find and compare flights from Northern Ireland to Brussels that are best for you.

Fly from

Northern Ireland

Fly to

Brussels

Route

Depart

Return

Price

BelfastBrussels

BFS - CRL

BFSCRL

Belfast Intl

Sat 3/1

06:00-10:40

1 stop3h 40m

Charleroi Brussels

Sat 10/1

21:10-06:45

1 stop10h 35m

£123

BelfastBrussels

BFS - CRL

BFSCRL

Belfast Intl

Sat 21/2

06:00-20:45

1 stop13h 45m

Charleroi Brussels

Sun 22/2

12:35-22:40

1 stop11h 05m

£127

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Sat 21/2

08:25-20:45

1 stop11h 20m

Charleroi Brussels

Sun 22/2

07:50-15:15

1 stop8h 25m

£149

BelfastBrussels

BFS - CRL

BFSCRL

Belfast Intl

Fri 19/12

08:05-16:35

1 stop7h 30m

Charleroi Brussels

Mon 22/12

07:35-19:00

1 stop12h 25m

£152

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Sat 3/1

07:00-20:45

1 stop12h 45m

Charleroi Brussels

Sat 10/1

21:10-09:45

1 stop13h 35m

£167

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Fri 19/12

16:50-22:25

1 stop4h 35m

Charleroi Brussels

Mon 22/12

07:35-20:50

1 stop14h 15m

£172

BelfastBrussels

BFS - BRU

BFSBRU

Belfast Intl

Mon 17/11

18:50-09:10

2 stops13h 20m

Brussels Bruxelles-National

Thu 20/11

06:00-12:20

1 stop7h 20m

£174

BelfastBrussels

BHD - BRU

BHDBRU

Belfast City

Sat 21/2

06:35-13:40

1 stop6h 05m

Brussels Bruxelles-National

Sun 22/2

21:35-08:25

1 stop11h 50m

£183

BelfastBrussels

BHD - BRU

BHDBRU

Belfast City

Tue 24/3

11:25-16:40

1 stop4h 15m

Brussels Bruxelles-National

Wed 25/3

20:30-09:10

1 stop13h 40m

£199

BelfastBrussels

BHD - BRU

BHDBRU

Belfast City

Tue 31/3

09:35-14:20

1 stop3h 45m

Brussels Bruxelles-National

Thu 2/4

21:10-08:45

1 stop12h 35m

£199

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 15 results
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Best time to book a flight from Northern Ireland to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Northern 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 Northern Ireland to Brussels

What is the cheapest time of day to fly from NIR to BRU?

Find hourly flight availability from Northern Ireland to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 November 2025.

It’s typically best to fly out from Northern Ireland to Brussels in the morning. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Brussels. 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 Northern Ireland to Brussels?

    Airlines like British Airways fly from Northern Ireland to Brussels in about 6h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from Northern Ireland to Brussels is about 502 mi.

  • What are the most popular routes from Northern Ireland to Brussels?

    The most popular route from Northern Ireland to Brussels is Belfast Intl - Brussels Bruxelles-National. You may also consider Belfast City - Brussels Bruxelles-National or Belfast City - Charleroi Brussels.

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

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

  • How can I find direct flights from Northern Ireland to Brussels?

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

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

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Northern Ireland to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Bruxelles-National flights
Manchester to Bruxelles-National flights
Stansted to Bruxelles-National flights
Luton to Bruxelles-National flights
London City to Bruxelles-National flights
Heathrow to Bruxelles-National flights
Stansted to Charleroi Brussels flights
Luton to Charleroi Brussels flights
Gatwick to Charleroi Brussels flights
Heathrow to Charleroi Brussels flights
Manchester to Charleroi Brussels flights
Newcastle upon Tyne to Bruxelles-National flights
Edinburgh to Bruxelles-National flights
Birmingham to Bruxelles-National flights
Manchester to Antwerp flights
Bristol to Bruxelles-National flights
Southend to Bruxelles-National flights
Edinburgh to Charleroi Brussels flights
Newcastle upon Tyne to Charleroi Brussels flights
Gatwick to Antwerp flights
Birmingham to Charleroi Brussels flights
Luton to Antwerp flights
Stansted to Antwerp flights
Liverpool to Bruxelles-National flights
Glasgow Intl to Bruxelles-National flights
Southampton to Bruxelles-National flights
Leeds to Bruxelles-National flights
Heathrow to Ostend flights
Gatwick to Ostend flights
East Midlands to Bruxelles-National flights
Bristol to Charleroi Brussels flights
Glasgow Intl to Charleroi Brussels flights
Belfast Intl to Bruxelles-National flights
London City to Charleroi Brussels flights
Norwich to Bruxelles-National flights
Birmingham to Antwerp flights
East Midlands to Charleroi Brussels flights
Leeds to Charleroi Brussels flights
Belfast City to Bruxelles-National flights
Southend to Antwerp flights
Cardiff to Bruxelles-National flights
Heathrow to Antwerp flights
Liverpool to Charleroi Brussels flights
Manchester to Ostend flights
Aberdeen to Bruxelles-National flights
Grimsby to Bruxelles-National flights
Newquay to Bruxelles-National flights
London City to Antwerp flights
Darlington to Bruxelles-National flights

Top 2 airlines flying from Northern Ireland to Brussels

Discover the top 2 airlines that operate flights from Northern Ireland to Brussels. 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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£158Average£195FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£163Average£212FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Northern Ireland to Brussels?

Deals for Northern Ireland to Brussels flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Brussels.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Northern Ireland to Brussels, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Northern Ireland to Brussels 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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