What is the cheapest airline that flies from Northern Ireland to Brussels?

KLM is the most popular carrier operating from Northern Ireland to Brussels

When did momondo last update prices for flights from Northern Ireland to Brussels?

Prices for flights from Northern Ireland to Brussels are refreshed on a daily basis.

How many operators does momondo search for flights from Northern Ireland to Brussels?

There are 2 operators available for flights from Northern Ireland to Brussels as of December 2025.

How old do you have to be to fly from Northern Ireland to Brussels?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Brussels.

What documentation or ID do you need to fly to Brussels?

The travel and health documents you'll need for your trip to Brussels 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 license and a passport that is valid for six months after your intended arrival at Brussels. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£54 Cheap Flights from Northern Ireland to Brussels in 2025/26

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Find the cheapest flights from Northern Ireland to Brussels

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

22:25 - 11:05

BFS

CRL

11h 40m1 stop

21:10 - 06:45

CRL

BFS

10h 35m1 stop

£105Multiple Airlines

Sat, 17 Jan - Sat, 24 Jan

14:25 - 22:25

BHD

CRL

7h 00m1 stop

11:30 - 17:20

CRL

BHD

6h 50m1 stop

£114Multiple Airlines

Fri, 23 Jan - Fri, 30 Jan

07:00 - 14:45

BHD

CRL

6h 45m1 stop

19:55 - 16:15

CRL

BHD

21h 20m2 stops

£121Multiple Airlines

Fri, 23 Jan - Fri, 30 Jan

22:25 - 11:05

BFS

CRL

11h 40m1 stop

14:10 - 22:45

CRL

BFS

9h 35m2 stops

£139Multiple Airlines

Sat, 17 Jan - Sat, 24 Jan

15:55 - 14:10

BHD

CRL

21h 15m2 stops

19:55 - 16:15

CRL

BHD

21h 20m2 stops

£141Multiple Airlines

Fri, 23 Jan - Fri, 30 Jan

23:05 - 16:50

BFS

BRU

16h 45m2 stops

09:40 - 22:40

BRU

BFS

14h 00m2 stops

£144Multiple Airlines

Sun, 8 Feb - Sun, 15 Feb

11:05 - 16:20

BHD

CRL

4h 15m1 stop

12:35 - 17:20

CRL

BHD

5h 45m1 stop

£161Multiple Airlines

Sat, 17 Jan - Sat, 24 Jan

16:45 - 08:20

BHD

CRL

14h 35m2 stops

12:35 - 17:20

CRL

BHD

5h 45m1 stop

£172Multiple Airlines

Sat, 17 Jan - Sat, 24 Jan

09:15 - 16:40

BHD

BRU

6h 25m1 stop

09:50 - 16:40

BRU

BHD

7h 50m1 stop

£198British Airways

Mon, 23 Feb - Fri, 27 Feb

06:35 - 13:40

BHD

BRU

6h 05m1 stop

19:25 - 11:10

BRU

BHD

16h 45m1 stop

£201British Airways

Sat, 17 Jan - Sat, 24 Jan

British Airways flights from Northern Ireland to Brussels

Our best British Airways deals on Northern Ireland to Brussels flight tickets

British Airways

23 Feb

BHD09:15Belfast City

6h 25m

1 stop

BRU16:40Brussels Bruxelles-National

27 Feb

BRU09:50Brussels Bruxelles-National

7h 50m

1 stop

BHD16:40Belfast City

£198

Find similar

British Airways

17 Jan

BHD06:35Belfast City

6h 05m

1 stop

BRU13:40Brussels Bruxelles-National

24 Jan

BRU19:25Brussels Bruxelles-National

16h 45m

1 stop

BHD11:10Belfast City

£201

Find similar

British Airways

8 Jan

BHD10:40Belfast City

4h 40m

1 stop

BRU16:20Brussels Bruxelles-National

12 Jan

BRU15:00Brussels Bruxelles-National

4h 40m

1 stop

BHD18:40Belfast City

£206

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Northern Ireland to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastBrussels

BFS - CRL

BFSCRL

Belfast Intl

Sat 17/1

22:25-11:05

1 stop11h 40m

Charleroi Brussels

Sat 24/1

21:10-06:45

1 stop10h 35m

£105

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Fri 23/1

14:25-22:25

1 stop7h 00m

Charleroi Brussels

Fri 30/1

11:30-17:20

1 stop6h 50m

£114

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Fri 23/1

07:00-14:45

1 stop6h 45m

Charleroi Brussels

Fri 30/1

19:55-16:15

2 stops21h 20m

£121

BelfastBrussels

BFS - CRL

BFSCRL

Belfast Intl

Sat 17/1

22:25-11:05

1 stop11h 40m

Charleroi Brussels

Sat 24/1

14:10-22:45

2 stops9h 35m

£139

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Fri 23/1

15:55-14:10

2 stops21h 15m

Charleroi Brussels

Fri 30/1

19:55-16:15

2 stops21h 20m

£141

BelfastBrussels

BFS - BRU

BFSBRU

Belfast Intl

Sun 8/2

23:05-16:50

2 stops16h 45m

Brussels Bruxelles-National

Sun 15/2

09:40-22:40

2 stops14h 00m

£144

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Sat 17/1

11:05-16:20

1 stop4h 15m

Charleroi Brussels

Sat 24/1

12:35-17:20

1 stop5h 45m

£161

BelfastBrussels

BHD - CRL

BHDCRL

Belfast City

Sat 17/1

16:45-08:20

2 stops14h 35m

Charleroi Brussels

Sat 24/1

12:35-17:20

1 stop5h 45m

£172

BelfastBrussels

BHD - BRU

BHDBRU

Belfast City

Mon 23/2

09:15-16:40

1 stop6h 25m

Brussels Bruxelles-National

Fri 27/2

09:50-16:40

1 stop7h 50m

£198

BelfastBrussels

BHD - BRU

BHDBRU

Belfast City

Sat 17/1

06:35-13:40

1 stop6h 05m

Brussels Bruxelles-National

Sat 24/1

19:25-11:10

1 stop16h 45m

£201

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland to Brussels

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

Prices

Airlines

What is the cheapest day to depart on your flight to Brussels?

Our data shows that Friday is the least expensive day to fly to Brussels. Tickets to fly out on this day can be as low as £172. On the other hand, Saturday is the most expensive day to depart from Northern Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £217.

What is the cheapest time of day to depart on your flight to Brussels?

According to our data, the cheapest time of day to fly to Brussels is in the morning. momondo users have found flights departing from Northern Ireland to Brussels in the morning for as low as £166. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Brussels, so prices are often more expensive at around £206 per ticket.

Cheap Northern Ireland to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Brussels

Fastest flight time	4h 15m
Direct flights	None

The fastest flight from Northern Ireland to Brussels takes 4h 15m

There are no direct flights from Northern Ireland to Brussels. There are no popular flight routes from Northern Ireland to Brussels.

Search flight deals

When did momondo last update prices for flights from Northern Ireland to Brussels?
Prices for flights from Northern Ireland to Brussels are refreshed on a daily basis.
How many operators does momondo search for flights from Northern Ireland to Brussels?
There are 2 operators available for flights from Northern Ireland to Brussels as of December 2025.
How old do you have to be to fly from Northern Ireland to Brussels?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Brussels.
What documentation or ID do you need to fly to Brussels?
The travel and health documents you'll need for your trip to Brussels 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 license and a passport that is valid for six months after your intended arrival at Brussels. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Northern Ireland to Brussels

Compare and see reviews for airlines that fly from Northern Ireland to Brussels with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £157	Free Cancellation	Rating 6.7 7,617 reviews		Search British Airways flights
KLM	PriceFrom £159	Free Cancellation	Rating 7.7 1,434 reviews		Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Brussels?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Brussels from Northern Ireland.

Can I find flights from Northern Ireland to Brussels with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Brussels from Northern Ireland with this policy.

How can momondo help me find flights from Northern Ireland to Brussels?

Once you have performed a search for Northern Ireland to Brussels flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Northern Ireland to Brussels right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Northern Ireland to Brussels now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Brussels and let you know when they change.

An easier way to manage your Brussels trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Brussels Bruxelles-National Airport

Charleroi Brussels Airport

Cheap flights from Northern Ireland to Brussels from £54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Brussels departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Northern Ireland to Brussels

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

British Airways flights from Northern Ireland to Brussels

Our best British Airways deals on Northern Ireland to Brussels flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Northern Ireland to Brussels that are best for you.

See travel insights to Brussels from

How to get the cheapest flight ticket from Northern Ireland to Brussels

What is the cheapest day to depart on your flight to Brussels?

What is the cheapest time of day to depart on your flight to Brussels?

What is the cheapest airline that flies from Northern Ireland to Brussels?

KLM is the most popular carrier operating from Northern Ireland to Brussels

Cheap Northern Ireland to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Brussels

Fastest flight time

Direct flights

When did momondo last update prices for flights from Northern Ireland to Brussels?

How many operators does momondo search for flights from Northern Ireland to Brussels?

How old do you have to be to fly from Northern Ireland to Brussels?

What documentation or ID do you need to fly to Brussels?

Best airlines flying from Northern Ireland to Brussels

Compare and see reviews for airlines that fly from Northern Ireland to Brussels with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Brussels?

Can I find flights from Northern Ireland to Brussels with flexible booking policies on momondo?

How can momondo help me find flights from Northern Ireland to Brussels?

I’m not ready to book a flight from Northern Ireland to Brussels right now. Can momondo alert me if prices change?

An easier way to manage your Brussels trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels