£50 Find Cheap Flights from London Heathrow Airport to Brussels

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Brussels departing on 14/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Brussels, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£92
Overall average: £108
Brussels Airlines
Sat 14/3Sat 21/3
LHR - BRU • Direct
Cheapest one-way flight
£50
Typical prices: £75-£160
British Airways
Sat 14/3
LHR - BRU • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
BA's Euro Traveller fares include a cabin bag.
Heathrow gates are posted late, so patience is key.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Brussels Airlines
Cheapest • from £92 (return)
Brussels Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR
-
BRU
Cheapest
LHR
-
BRU
Most popular
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
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We hope you love your trip to Brussels!
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Flight Deals

Cheap Flights from Heathrow to Brussels (LHR-BRU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Brussels that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Brussels

Sat, 14 Mar - Sat, 21 Mar
Brussels Airlines Logo
11:05 - 13:15
LHR
-
BRU
1h 10mdirect
Brussels Airlines Logo
21:10 - 21:20
BRU
-
LHR
1h 10mdirect
£92Brussels Airlines
Sat, 14 Mar - Sat, 21 Mar
British Airways Logo
06:30 - 08:45
LHR
-
BRU
1h 15mdirect
British Airways Logo
14:55 - 15:10
BRU
-
LHR
1h 15mdirect
£94British Airways
Sat, 14 Mar - Sat, 21 Mar
British Airways Logo
11:25 - 13:40
LHR
-
BRU
1h 15mdirect
British Airways Logo
11:35 - 11:55
BRU
-
LHR
1h 20mdirect
£95British Airways
Wed, 27 May - Sat, 30 May
British Airways Logo
07:45 - 09:55
LHR
-
BRU
1h 10mdirect
British Airways Logo
20:05 - 20:10
BRU
-
LHR
1h 05mdirect
£98British Airways
Wed, 25 Mar - Fri, 27 Mar
British Airways Logo
06:25 - 08:40
LHR
-
BRU
1h 15mdirect
British Airways Logo
09:50 - 10:10
BRU
-
LHR
1h 20mdirect
£99British Airways
Wed, 11 Mar - Wed, 18 Mar
British Airways Logo
14:50 - 17:05
LHR
-
BRU
1h 15mdirect
British Airways Logo
11:50 - 12:10
BRU
-
LHR
1h 20mdirect
£99British Airways
Fri, 27 Feb - Fri, 6 Mar
British Airways Logo
14:45 - 17:00
LHR
-
BRU
1h 15mdirect
British Airways Logo
21:20 - 21:40
BRU
-
LHR
1h 20mdirect
£100British Airways
Sat, 28 Feb - Thu, 5 Mar
British Airways Logo
06:30 - 08:45
LHR
-
BRU
1h 15mdirect
British Airways Logo
15:00 - 15:15
BRU
-
LHR
1h 15mdirect
£101British Airways
Tue, 24 Feb - Tue, 3 Mar
Brussels Airlines Logo
17:50 - 20:00
LHR
-
BRU
1h 10mdirect
Brussels Airlines Logo
09:40 - 10:05
BRU
-
LHR
1h 25mdirect
£102Brussels Airlines
Thu, 26 Feb - Mon, 2 Mar
Multiple Airlines Logo
18:20 - 08:20
LHR
-
CRL
13h 00m
1 stop
Multiple Airlines Logo
08:55 - 22:00
CRL
-
LHR
14h 05m
1 stop
£141Multiple Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Brussels flights

Get data-powered insights and trends into flights from Heathrow to Brussels to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Brussels flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London Heathrow Airport to Brussels costs £100 on the route between London Heathrow Airport (LHR) and Brussels Bruxelles-National Airport (BRU). It is also the most popular route.

What’s the cheapest day of the week to fly from London Heathrow Airport to Brussels?

The average price of all round-trip flights from London Heathrow Airport to Brussels clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to Brussels, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Brussels back to London Heathrow Airport, the best deals are generally found on Thursday, with Saturday being the most expensive.

What is the cheapest month to fly from London Heathrow Airport to Brussels?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Brussels, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Brussels is January, where tickets cost £108 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is £141 and £126 respectively.

How far in advance should I book a flight from London Heathrow Airport to Brussels?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Brussels, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Brussels, you should book around 5 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Brussels

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Brussels Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Good to know - Cheap tickets from London Heathrow Airport to Brussels

Cheapest flight£50
Flight from London Heathrow Airport to Brussels Airport

When to book flights from Heathrow to Brussels

Are your dates flexible? Find out the best times to travel from Heathrow to Brussels based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Heathrow to Brussels: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Heathrow to Brussels 
Verified travelerFlew with British Airways
LHR
-
BRU
Feb 2024
Have patience. Heathrow is crowded and they don’t post the gate until the last minute. Be prepared to travel a long distance to the gate once it gets posted and go immediately.
Verified travelerFlew with British Airways
LHR
-
BRU
Jan 2024
Be prepared. BA didn't provide a gate until 45 minutes pre-boarding, with only a 15-20 minute window for passengers to "board" a bus, to take them to their plane.

FAQs for booking London Heathrow Airport to Brussels flights

  • What is the cheapest flight from London Heathrow Airport to Brussels?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Brussels was £50 for a one-way ticket and £92 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Brussels?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at one of these airports: Brussels Bruxelles-National or Charleroi Brussels.

  • Which aircraft models fly most regularly from London Heathrow Airport to Brussels?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to Brussels?

    oneworld, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Brussels, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Brussels?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Brussels?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Brussels with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Brussels?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from London Heathrow Airport to Brussels?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Brussels.
Find which airlines fly direct from London Heathrow Airport to Brussels, which days they fly and book direct flights.

Direct departures

London Heathrow to Brussels

Monday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Tuesday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Wednesday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Thursday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Friday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Saturday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Sunday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

See more direct flights

Direct returns

Brussels to London Heathrow

Monday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Tuesday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Wednesday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Thursday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Friday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Saturday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

Sunday

British Airways, Brussels Airlines

British Airways, Brussels Airlines

See more direct flights

Reviews of the top airlines flying from Heathrow to Brussels

 
See real verified KAYAK customer reviews for airlines flying from London to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Brussels? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Brussels AirlinesOverall score based on 381 reviews
6.1Entertainment
7.9Crew
6.9Comfort
7.3Boarding
6.3Food
Airline reviews

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

2.0 MediocreAnonymous, Sept 2025
LHR - BRU
Read more Brussels Airlines reviews

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Late. And service was very slow - passengers sat for well over an hour with dirty trays etc surrounding them

Entertainment devices on A380 need to be fixed, the seats might do with updates.

I like everything about British Airways. Excellence. Perfect. Exquisite service.

The plane was dirty the food was awful and the boarding process took too long

Everything you need to know for your flight from Heathrow to Brussels

Information on your arrival and departure airports