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Cheap flights from London Heathrow Airport to Brussels from £51

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BRU
21 Jul — 28 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Brussels are usually found in January or September, booked 78 days in advance, depart on a Friday or Monday and return on a Tuesday

Cheap flight deals from Heathrow to Brussels

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Brussels
Explore the most affordable flight options available from Heathrow to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 June 2026.

Mon 27/711:05
LHR
-
BRU
Nonstop1h 10m
Brussels Airlines
Tue 28/721:20
BRU
-
LHR
Nonstop1h 15m
Brussels Airlines
Deal found 20/6£103
Mon 27/711:05
LHR
-
BRU
Nonstop1h 10m
Brussels Airlines
Fri 31/716:55
BRU
-
LHR
Nonstop1h 10m
Brussels Airlines
Deal found 20/6£104
Mon 27/711:05
LHR
-
BRU
Nonstop1h 10m
Brussels Airlines
Thu 30/716:55
BRU
-
LHR
Nonstop1h 10m
Brussels Airlines
Deal found 18/6£106
Sat 11/706:50
LHR
-
BRU
Nonstop1h 05m
Brussels Airlines
Sat 11/721:20
BRU
-
LHR
Nonstop1h 15m
Brussels Airlines
Deal found 16/6£109
Wed 15/706:50
LHR
-
BRU
Nonstop1h 05m
Brussels Airlines
Sun 19/716:55
BRU
-
LHR
Nonstop1h 10m
Brussels Airlines
Deal found 20/6£110
Thu 9/706:50
LHR
-
BRU
Nonstop1h 05m
Brussels Airlines
Sun 12/721:20
BRU
-
LHR
Nonstop1h 15m
Brussels Airlines
Deal found 20/6£111
Fri 9/1007:45
LHR
-
BRU
Nonstop1h 10m
British Airways
Sun 11/1010:40
BRU
-
LHR
Nonstop1h 15m
British Airways
Deal found 18/6£112
Tue 14/706:50
LHR
-
BRU
Nonstop1h 05m
Brussels Airlines
Tue 14/721:20
BRU
-
LHR
Nonstop1h 15m
Brussels Airlines
Deal found 20/6£113
Wed 23/907:45
LHR
-
BRU
Nonstop1h 10m
British Airways
Mon 28/920:50
BRU
-
LHR
Nonstop1h 05m
British Airways
Deal found 17/6£114
Fri 10/720:50
LHR
-
CRL
1 stop10h 10m
Multiple Airlines
Mon 13/721:30
CRL
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 16/6£162
Sun 26/720:50
LHR
-
CRL
1 stop13h 30m
Multiple Airlines
Mon 27/721:30
CRL
-
LHR
1 stop12h 40m
Multiple Airlines
Deal found 19/6£187
Thu 16/720:50
LHR
-
CRL
1 stop13h 40m
Multiple Airlines
Thu 30/706:35
CRL
-
LHR
1 stop14h 30m
Multiple Airlines
Deal found 18/6£193

Find flight deals from Heathrow to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 June 2026.

Round-trip from

£103

One-way from

£51

Popular in

July

Cheapest in

January

Average price

£146
Brussels Airlines
  • Brussels Airlines
  • 27/7-28/7
  • Nonstop
  • 2h 25m total
  • London to Brussels
Search Deals
British Airways
  • British Airways
  • 5/12
  • Nonstop
  • 1h 15m total
  • London to Brussels
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 21 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Tue 15/9

06:50-08:55

Nonstop1h 05m

Brussels Bruxelles-National

Sat 19/9

21:20-21:35

Nonstop1h 15m

£103

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Sat 19/9

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Tue 22/9

19:55-20:05

Nonstop1h 10m

£120
Fastest return journey

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Wed 23/9

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Wed 30/9

21:15-21:20

Nonstop1h 05m

£120

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Wed 23/9

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Sun 27/9

10:40-10:55

Nonstop1h 15m

£120

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Fri 25/9

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Mon 28/9

20:50-20:55

Nonstop1h 05m

£120

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Mon 30/11

17:40-19:55

Nonstop1h 15m

Brussels Bruxelles-National

Tue 8/12

14:55-15:10

Nonstop1h 15m

£125

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Fri 4/12

06:35-08:50

Nonstop1h 15m

Brussels Bruxelles-National

Wed 9/12

11:50-12:10

Nonstop1h 20m

£125

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Mon 21/9

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Thu 24/9

21:15-21:20

Nonstop1h 05m

£131

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Tue 4/8

17:50-20:00

Nonstop1h 10m

Brussels Bruxelles-National

Sun 16/8

21:20-21:35

Nonstop1h 15m

£135

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Sat 8/8

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Thu 13/8

21:20-21:35

Nonstop1h 15m

£137

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 46 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Heathrow 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 London Heathrow Airport to Brussels

What is the cheapest month to book a flight from London Heathrow Airport to Brussels?

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Brussels (average of £70). Flying from London Heathrow Airport to Brussels in February is currently the most expensive (average of £91). 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 LHR to BRU?

Find hourly flight availability from Heathrow 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 21 June 2026.

It’s typically best to fly out from London Heathrow Airport to Brussels in the evening. Doing so could potentially save you 76% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from London Heathrow Airport to Brussels

Explore weekly flight availability from Heathrow to Brussels. 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 21 June 2026.

The most flights from LHR to BR1 are scheduled on a Friday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from London Heathrow Airport to Brussels?

How often are flights from London to Brussels delayed?

About 21% of weekly flights between London and Brussels have experienced delays in the past year, with the average delay time being 97 minutes.

What is the most punctual flight time for London to Brussels flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Brussels flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 16% of flights being delayed.

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

The best time to book flights from London Heathrow Airport to Brussels is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated 21 June 2026.
See what other customers who have flown with Brussels Airlines and British Airways from London Heathrow Airport to Brussels have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Brussels Airlines
7.2
Good
412 reviews
Check prices

Boarding

7.3

Comfort

7.0

Overall

7.2

Entertainment

6.2

Crew

7.9

Food

6.3

Reviews

1 / 20
8.0
Excellent

Nyaga,Mar 2026

BRU - NBO

Airbus A330 was quite empty, so had all the seats to myself. Very comfortable. Flight left on time. Not a fan of pizza as it is processed carbs heavy but the rest of the food was good. Movies were good. I enjoyed Better Man - a movie on Robbie William's life.
Brussels Airlines
7.2
Good
412 reviews
Brussels Airlines
7.2
Good
412 reviews
Check prices

Boarding

7.3

Comfort

7.0

Overall

7.2

Entertainment

6.2

Crew

7.9

Food

6.3

Reviews

1 / 20
8.0
Excellent

Nyaga,Mar 2026

BRU - NBO

Airbus A330 was quite empty, so had all the seats to myself. Very comfortable. Flight left on time. Not a fan of pizza as it is processed carbs heavy but the rest of the food was good. Movies were good. I enjoyed Better Man - a movie on Robbie William's life.
British Airways
6.7
Okay
8,062 reviews
Brussels Airlines
7.2
Good
412 reviews
Check prices

Boarding

7.3

Comfort

7.0

Overall

7.2

Entertainment

6.2

Crew

7.9

Food

6.3

Reviews

1 / 20
8.0
Excellent

Nyaga,Mar 2026

BRU - NBO

Airbus A330 was quite empty, so had all the seats to myself. Very comfortable. Flight left on time. Not a fan of pizza as it is processed carbs heavy but the rest of the food was good. Movies were good. I enjoyed Better Man - a movie on Robbie William's life.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 London Heathrow Airport to Brussels?

    Airlines like Brussels Airlines and British Airways fly from London Heathrow Airport to Brussels in about 1h 05m. The time it takes to get you to your destination is usually consistent. The distance from London Heathrow Airport to Brussels is about 217 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines flying from London Heathrow Airport to Brussels round-trip?

    Our cheapest airline available from London Heathrow Airport to Brussels is British Airways. Our recent data shows that you can find tickets from as low as £92 on this airline. An additional option worth looking into is Brussels Airlines, starting at £97. Users have found that British Airways is 29% cheaper than the other options available to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Brussels?

    Consider British Airways (79%), Cathay Pacific (76%) or American Airlines (76%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Brussels.

  • What are the cheapest flights from London Heathrow Airport to Brussels?

    On average you can expect to pay £595 for a flight from London Heathrow Airport to Brussels. The cheapest flight overall is £60 while the most popular route, (London Heathrow - Brussels Bruxelles-National) is currently priced at £88.

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

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

  • How can I find direct flights from Heathrow to Brussels?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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.

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

    Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Brussels (average of £70). Flying from London Heathrow Airport to Brussels in February is currently the most expensive (average of £91). 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

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Top 2 airlines flying from Heathrow to Brussels

Discover the top 2 airlines that operate flights from Heathrow 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 21 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£92Average£117FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£98Average£135FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Brussels?

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

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

Need flexible booking options for your flight to Brussels from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Heathrow to Brussels flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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