£46 Find Cheap Flights from London Heathrow Airport to Belgium

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 Belgium departing on 6/10. 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

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Best Belgium Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours
Brussels
Brusselsdirect£89
Ostend
Ostend2 stops£321
Brussels
Brusselsdirect£89
Ostend
Ostend2 stops£321

Cheap Flights from Heathrow to Belgium

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Belgium 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 Belgium

Tue, 9 Dec - Tue, 23 Dec
British Airways Logo
14:25 - 16:40LHR-BRU
1h 15mdirect
British Airways Logo
14:45 - 15:05BRU-LHR
1h 20mdirect
£89British Airways
Find Deal
Wed, 17 Sep - Sat, 20 Sep
British Airways Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
British Airways Logo
22:05 - 22:15BRU-LHR
1h 10mdirect
£91British Airways
Find Deal
Thu, 28 Aug - Mon, 1 Sep
Brussels Airlines Logo
07:45 - 09:45LHR-BRU
1h 00mdirect
Brussels Airlines Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
£111Brussels Airlines
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Fri, 29 Aug - Fri, 29 Aug
Brussels Airlines Logo
06:50 - 08:50LHR-BRU
1h 00mdirect
Brussels Airlines Logo
21:20 - 21:35BRU-LHR
1h 15mdirect
£112Brussels Airlines
Find Deal
Fri, 4 Jul - Sat, 12 Jul
 Logo
11:55 - 14:10LHR-BRU
1h 15mdirect
 Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
Sat, 12 Jul - Mon, 14 Jul
 Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
 Logo
20:40 - 20:55BRU-LHR
1h 15mdirect
Fri, 19 Sep - Sun, 21 Sep
Scandinavian Airlines Logo
06:40 - 19:10LHR-BRU
11h 30m1 stop
Scandinavian Airlines Logo
11:55 - 16:25BRU-LHR
5h 30m1 stop
£160Scandinavian Airlines
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Fri, 5 Dec - Sun, 7 Dec
Scandinavian Airlines Logo
06:40 - 18:40LHR-BRU
11h 00m1 stop
Scandinavian Airlines Logo
19:45 - 08:55BRU-LHR
14h 10m1 stop
£163Scandinavian Airlines
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Thu, 10 Jul - Thu, 31 Jul
KLM Logo
09:55 - 14:35LHR-BRU
3h 40m1 stop
KLM Logo
15:05 - 17:35BRU-LHR
3h 30m1 stop
£177KLM
Find Deal
Thu, 18 Sep - Sat, 20 Sep
KLM Logo
17:10 - 22:15LHR-BRU
4h 05m1 stop
KLM Logo
15:05 - 17:50BRU-LHR
3h 45m1 stop
£180KLM
Find Deal
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KAYAK's insights & trends for Heathrow to Belgium flights

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

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Belgium.

The cheapest ticket to Belgium from London Heathrow Airport found in the last 72 hours was to Brussels, at £106 return. The most popular route is from London Heathrow Airport (LHR) to Brussels Bruxelles-National Airport (BRU), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £106.

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

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 Belgium, 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 Belgium is January, when tickets cost £105 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £141 and £135 respectively.

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

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

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

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

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 Belgium, 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 Belgium, you should book around 7 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.


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

Low seasonJanuary
High seasonDecember
Cheapest flight£46
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly (32% more expensive on average)
Flight from London Heathrow Airport to Brussels Airport

Flights from Heathrow to Belgium: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Heathrow to Belgium 
Verified travelerFlew with British AirwaysLHR-BRUFeb 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 AirwaysLHR-BRUJan 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 - booking Belgium flights

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

    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 Belgium.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Belgium 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 Belgium?

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

    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 from London Heathrow Airport to Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Belgium?

    The cheapest time of day to fly to Belgium is generally in the afternoon, when retur flights cost £149 on average. Morning departures are around 167% more expensive than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the morning, which is peak travel time and where the average cost of a ticket is £632.

Top 3 airlines serving from Heathrow to Belgium

 
Need help choosing which airline to fly with from Heathrow to Belgium? 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.
7.8
KLMOverall score based on 1358 reviews
7.8Boarding
7.7Comfort
7.2Food
7.1Entertainment
8.4Crew
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

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

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long flight ?

The flight went well, only during the flight from Brussels to Vilnius I would have liked if they had at least given us plain water to drink.

The boarding process would have been better. When people are flying internationally and the airline is a member of Star Alliance they cannot have different rules for carryon baggage. Brussels Airlines made us adjust the weight of our carryons based on their rules even though we were flying international and our next flight was with United which does not have weight restrictions for carryons. That was just ridiculous.

I didn’t have food and they don’t include entertainment. Not much leg room at all. Staff were great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

charging port did not work, no entertainment system. Other than that the flight was good and safe.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

When Stephen arrived with our wheel chairs - we were in excellent hands! He was such great help with getting our rental car and then reporting our missing luggage. When you are exhausted from traveling for too many hours, he was just what we needed to navigate everything! Give that guy a raise!

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

Gate information deliberately delayed to only one hour B4 flight, lack of info finding gate.

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

Information on your arrival and departure airports

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