£50 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 28/10. 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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Cheap Flights from Heathrow to Belgium

Cheapest return prices found by our users on KAYAK in the last 72 hours
Brussels
Brusselsdirect£95
Ostend
Ostend1 stop£334
Brussels
Brusselsdirect£95
Ostend
Ostend1 stop£334

Book Cheap Heathrow to Belgium Plane Tickets

 
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

Sat, 29 Nov - Sun, 30 Nov
Brussels Airlines Logo
06:50 - 08:55LHR-BRU
1h 05mdirect
Brussels Airlines Logo
21:10 - 21:20BRU-LHR
1h 10mdirect
£95Brussels Airlines
Find Deal
Sat, 27 Sep - Sat, 4 Oct
British Airways Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
British Airways Logo
19:55 - 20:05BRU-LHR
1h 10mdirect
£96British Airways
Find Deal
Mon, 27 Oct - Sun, 2 Nov
British Airways Logo
14:25 - 16:40LHR-BRU
1h 15mdirect
British Airways Logo
17:30 - 17:45BRU-LHR
1h 15mdirect
£97British Airways
Find Deal
Wed, 15 Oct - Wed, 22 Oct
British Airways Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
British Airways Logo
15:15 - 15:35BRU-LHR
1h 20mdirect
£98British Airways
Find Deal
Fri, 10 Oct - Sun, 12 Oct
British Airways Logo
07:45 - 09:55LHR-BRU
1h 10mdirect
British Airways Logo
10:40 - 10:55BRU-LHR
1h 15mdirect
£99British Airways
Find Deal
Fri, 10 Oct - Sun, 12 Oct
British Airways Logo
16:35 - 18:50LHR-BRU
1h 15mdirect
British Airways Logo
10:40 - 10:55BRU-LHR
1h 15mdirect
£100British Airways
Find Deal
Thu, 25 Dec - Sat, 27 Dec
British Airways Logo
07:10 - 09:25LHR-BRU
1h 15mdirect
British Airways Logo
19:25 - 19:40BRU-LHR
1h 15mdirect
£101British Airways
Find Deal
Thu, 27 Nov - Sun, 30 Nov
Brussels Airlines Logo
06:50 - 08:55LHR-BRU
1h 05mdirect
Brussels Airlines Logo
21:10 - 21:20BRU-LHR
1h 10mdirect
£102Brussels Airlines
Find Deal
Tue, 30 Sep - Tue, 30 Sep
Brussels Airlines Logo
06:50 - 08:50LHR-BRU
1h 00mdirect
Brussels Airlines Logo
21:20 - 21:35BRU-LHR
1h 15mdirect
£110Brussels Airlines
Find Deal
Sun, 7 Dec - Mon, 8 Dec
 Logo
07:00 - 08:15LHR-BRU
24h 15m1 stop
 Logo
16:55 - 17:05BRU-LHR
1h 10mdirect
Booking Insights

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?

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

The cheapest ticket to Belgium from London Heathrow Airport found in the last 72 hours was to Brussels, at £98 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 £98.

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 December, when the average cost of return tickets is £141 and £130 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 Sunday is the most expensive. Flying from Belgium back to London Heathrow Airport, the best deals are generally found on Friday, with Saturday 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 a flight from London Heathrow Airport to Belgium, you should book around 5 weeks before departure, which saves you about 22% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

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

Low seasonJanuary
Cheapest flight£50
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly (73% 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 at night, when retur flights cost £154 on average. Morning departures are around 158% 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 £619.

Reviews of the top 3 airlines flying 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 1385 reviews
7.3Food
8.4Crew
7.7Comfort
7.2Entertainment
7.8Boarding
Airline reviews

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

2.0 MediocreIlja, Aug 2025AGP - AMS
Read more KLM reviews

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

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!

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

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.

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

The flight was fine but no food available apart from snacks like Pringles and olives which was a problem for me as I hadn’t eaten anything that day. But the worst problem was BA left 24 suitcases in Heathrow as the flight was too full but didn’t tell anyone. So we waited for ages at Toulouse airport with no information and finally found out from the one member of staff in the baggage collection area who explained what had happened and apologised for no announcement being made but said that was their policy. Then BA contacted me today to say they have found my luggage and can deliver it to me on Tuesday - half way through my holiday!!!! So a friend has had to make a four hour round trip in his car to go and collect the luggage from the airport so we can get it today. A TOTAL SHAMBLES AND DISREGARD BY BA FOR THEIR PASSENGERS’ BEST INTERESTS.

Much much better than my previous times on British Airways the food was spot-on and the service was really genuine and attentive

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

First time on BA but will fly with them from now on! Everything about the flight was superb!!!

Horrible experience. They broke the handle of my checked in suitcase and then refused pay for damages

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

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

Information on your arrival and departure airports

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