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Cheap flights from London Heathrow Airport to Belgium from £48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Belgium departing on 29/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Belgium

Cheap return flights

Brussels Airlines Logo
06:50 - 08:50LHR-BRU
1h 00mdirect
Brussels Airlines Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
£97Brussels Airlines
Find Deal
Thu, 11 Sep - Sun, 14 Sep
Brussels Airlines Logo
11:05 - 13:15LHR-BRU
1h 10mdirect
Brussels Airlines Logo
21:20 - 21:35BRU-LHR
1h 15mdirect
£98Brussels Airlines
Find Deal
Fri, 29 Aug - Fri, 12 Sep
Brussels Airlines Logo
06:50 - 08:50LHR-BRU
1h 00mdirect
Brussels Airlines Logo
21:20 - 21:35BRU-LHR
1h 15mdirect
£99Brussels Airlines
Find Deal
Thu, 28 Aug - Fri, 29 Aug
Brussels Airlines Logo
11:05 - 13:15LHR-BRU
1h 10mdirect
Brussels Airlines Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
£100Brussels Airlines
Find Deal
Fri, 26 Sep - Fri, 26 Sep
Brussels Airlines Logo
11:05 - 13:15LHR-BRU
1h 10mdirect
Brussels Airlines Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
£101Brussels Airlines
Find Deal
Mon, 1 Sep - Mon, 1 Sep
Brussels Airlines Logo
11:05 - 13:15LHR-BRU
1h 10mdirect
Brussels Airlines Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
£101Brussels Airlines
Find Deal
Thu, 28 Aug - Thu, 4 Sep
British Airways Logo
19:00 - 21:15LHR-BRU
1h 15mdirect
British Airways Logo
21:15 - 21:25BRU-LHR
1h 10mdirect
£104British Airways
Find Deal
Sat, 30 Aug - Mon, 1 Sep
British Airways Logo
17:30 - 19:45LHR-BRU
1h 15mdirect
British Airways Logo
21:20 - 21:40BRU-LHR
1h 20mdirect
£104British Airways
Find Deal
Wed, 3 Dec - Fri, 12 Dec
British Airways Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
British Airways Logo
18:40 - 19:00BRU-LHR
1h 20mdirect
£108British Airways
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Logo
11:05 - 13:15LHR-BRU
1h 10mdirect
Logo
11:30 - 16:25BRU-LHR
5h 55m1 stop
£115
Find Deal
Thu, 30 Oct - Thu, 13 Nov

Lufthansa flights from London Heathrow Airport to Belgium

Our best Lufthansa deals on London Heathrow Airport to Belgium flight tickets
Lufthansa
7 Aug
LHR07:30London Heathrow
4h 15m
1 stop
BRU12:45Brussels Bruxelles-National
15 Aug
BRU14:25Brussels Bruxelles-National
4h 15m
1 stop
LHR17:40London Heathrow
£230
Find similar
Lufthansa
6 Aug
LHR08:30London Heathrow
4h 10m
1 stop
BRU13:40Brussels Bruxelles-National
13 Aug
BRU19:30Brussels Bruxelles-National
3h 40m
1 stop
LHR22:10London Heathrow
£230
Find similar
Lufthansa
7 Aug
LHR08:30London Heathrow
4h 10m
1 stop
BRU13:40Brussels Bruxelles-National
15 Aug
BRU14:25Brussels Bruxelles-National
4h 15m
1 stop
LHR17:40London Heathrow
£251
Find similar

Brussels Airlines flights from London Heathrow Airport to Belgium

Our best Brussels Airlines deals on London Heathrow Airport to Belgium flight tickets
Brussels Airlines
11 Sept
LHR06:50London Heathrow
1h 00m
BRU08:50Brussels Bruxelles-National
14 Sept
BRU20:40Brussels Bruxelles-National
1h 15m
LHR20:55London Heathrow
£97
Find similar
Brussels Airlines
29 Aug
LHR11:05London Heathrow
1h 10m
BRU13:15Brussels Bruxelles-National
12 Sept
BRU21:20Brussels Bruxelles-National
1h 15m
LHR21:35London Heathrow
£98
Find similar
Brussels Airlines
28 Aug
LHR06:50London Heathrow
1h 00m
BRU08:50Brussels Bruxelles-National
29 Aug
BRU21:20Brussels Bruxelles-National
1h 15m
LHR21:35London Heathrow
£99
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Thu 11/9

06:50-08:50

Nonstop1h 00m

Brussels Bruxelles-National

Sun 14/9

20:40-20:55

Nonstop1h 15m

£97

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Fri 29/8

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Fri 12/9

21:20-21:35

Nonstop1h 15m

£98

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Thu 28/8

06:50-08:50

Nonstop1h 00m

Brussels Bruxelles-National

Fri 29/8

21:20-21:35

Nonstop1h 15m

£99

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Fri 26/9

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Fri 26/9

20:40-20:55

Nonstop1h 15m

£100

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Mon 1/9

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Mon 1/9

20:40-20:55

Nonstop1h 15m

£100

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Thu 28/8

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Thu 4/9

20:40-20:55

Nonstop1h 15m

£101

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Sat 30/8

19:00-21:15

Nonstop1h 15m

Brussels Bruxelles-National

Mon 1/9

21:15-21:25

Nonstop1h 10m

£104

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Wed 3/12

17:30-19:45

Nonstop1h 15m

Brussels Bruxelles-National

Fri 12/12

21:20-21:40

Nonstop1h 20m

£104

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Wed 27/8

07:45-09:55

Nonstop1h 10m

Brussels Bruxelles-National

Wed 3/9

18:40-19:00

Nonstop1h 20m

£108

LondonBrussels

LHR - BRU

LHRBRU

London Heathrow

Thu 30/10

11:05-13:15

Nonstop1h 10m

Brussels Bruxelles-National

Thu 13/11

11:30-16:25

1 stop5h 55m

£115

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belgium from

How to get the cheapest flight ticket from London Heathrow Airport to Belgium

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

What is the cheapest month to fly to Belgium?

The month of January is, on average, the cheapest month to fly to Belgium from London Heathrow Airport, with most prices found around £108. If you aren’t able to travel during the month of January, then book flights to Belgium from London Heathrow Airport during February instead. Flights to Belgium in February, while not as cheap as those in January, still average around £112.

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

The cheapest day to depart from London Heathrow Airport to Belgium is on a Friday when prices can be found for as low as £413. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Belgium on Tuesday is £485.

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

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from London Heathrow Airport to Belgium during this time can be as low as £114. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £476 on average. Flights to Belgium from London Heathrow Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London Heathrow to Belgium flight route?

Fly from London Heathrow to Brussels Bruxelles-National for the best London Heathrow - Belgium flight prices

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around £124 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from London Heathrow Airport for as low as £102 on momondo.

What cabin class options are available on London Heathrow to Belgium flights?

There are 3 cabin classes available to choose from on London Heathrow to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap London Heathrow Airport to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Belgium

Best price found

£48

Fastest flight time

1h 00m

Direct flights

Every day

Airports in Belgium

2 airports
The best one-way flight to Belgium from London Heathrow Airport in the past 72 hours is £48. The best return flight deal from London Heathrow Airport to Belgium found on momondo in the last 72 hours is £97.
The fastest flight from London Heathrow Airport to Belgium takes 1h 00m
Direct flights go from London Heathrow Airport to Belgium every day.
There are 2 airports near Belgium: Brussels Bruxelles-National (BRU), Charleroi Brussels (CRL)
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Belgium?

    Prices for flights from London Heathrow Airport to Belgium refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Belgium?

  • How old do you have to be to fly from London Heathrow Airport to Belgium?

    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 London Heathrow Airport to Belgium.

  • What documentation or ID do you need to fly to Belgium?

    The travel and health documents you'll need for your trip to Belgium 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 Belgium. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Belgium?

Best airlines flying from London Heathrow Airport to Belgium

Compare and see reviews for airlines that fly from London Heathrow Airport to Belgium with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £86Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Brussels AirlinesPriceFrom £100Free CancellationRating
7.2
350 reviews
Search Brussels Airlines flights
KLMPriceFrom £144Free CancellationRating
7.8
1,383 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Belgium?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Belgium. momondo saves you time and could save you money on your trip.

Can I find flights from London to Belgium with flexible booking policies on momondo?

Flights from London to Belgium with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Belgium?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belgium from London.

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

If you are simply researching potential flights to Belgium, momondo offers a useful price alert feature which will track prices for flights to Belgium from London and alert you when they change.

An easier way to manage your Belgium 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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