£51 Find Cheap Flights from Belgium to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 7/10. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Belgium to London

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

Sat, 27 Dec - Thu, 1 Jan
British Airways Logo
19:25 - 19:40BRU-LHR
1h 15mdirect
British Airways Logo
17:20 - 19:35LHR-BRU
1h 15mdirect
£95British Airways
Find Deal
Sat, 11 Oct - Sat, 18 Oct
Ryanair Logo
22:05 - 08:15BRU-LGW
11h 10m1 stop
Ryanair Logo
19:20 - 09:05LGW-BRU
12h 45m1 stop
£95Ryanair
Find Deal
Wed, 24 Sep - Thu, 25 Sep
 Logo
08:20 - 23:00CRL-STN
15h 40m1 stop
 Logo
17:55 - 07:40STN-CRL
12h 45m1 stop
Sat, 27 Sep - Tue, 30 Sep
 Logo
09:55 - 09:30BRU-LTN
24h 35m1 stop
 Logo
21:50 - 18:50LTN-BRU
20h 00m1 stop
Mon, 20 Oct - Thu, 23 Oct
British Airways Logo
19:05 - 19:15BRU-LHR
1h 10mdirect
British Airways Logo
18:10 - 20:25LHR-BRU
1h 15mdirect
£96British Airways
Find Deal
Sat, 29 Nov - Sun, 30 Nov
Brussels Airlines Logo
21:10 - 21:20BRU-LHR
1h 10mdirect
Brussels Airlines Logo
06:50 - 08:55LHR-BRU
1h 05mdirect
£97Brussels Airlines
Find Deal
Thu, 23 Oct - Sun, 26 Oct
Wizz Air Logo
19:55 - 07:30CRL-LTN
12h 35m1 stop
Wizz Air Logo
08:20 - 19:20LTN-CRL
10h 00m1 stop
£98Wizz Air
Find Deal
Sun, 5 Oct - Fri, 17 Oct
Brussels Airlines Logo
21:20 - 21:35BRU-LHR
1h 15mdirect
Brussels Airlines Logo
17:50 - 20:00LHR-BRU
1h 10mdirect
£99Brussels Airlines
Find Deal
Fri, 28 Nov - Sun, 30 Nov
Wizz Air Logo
08:55 - 13:55CRL-LTN
6h 00m1 stop
Wizz Air Logo
08:20 - 19:20LTN-CRL
10h 00m1 stop
£102Wizz Air
Find Deal
Fri, 17 Oct - Sun, 19 Oct
Wizz Air Logo
14:40 - 21:10CRL-LTN
7h 30m1 stop
Wizz Air Logo
20:50 - 08:10LTN-CRL
10h 20m1 stop
£104Wizz Air
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by KAYAK users
Allow extra time for baggage at Heathrow.
Heathrow's size means longer passport control times.
User tips
User tips
User tips
User tips
Top airlines
Brussels Airlines
Most flights • 27 per week
Brussels Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
CRL-LON
Cheapest
BRU-LON
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 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 12% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£95
Overall average: £135
British Airways
Sat 27/12Thu 1/1
BRU - LHR • Direct
Cheapest one-way flight
£51
Multi-carrier
Tue 7/10
CRL - LGW • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to London!
Booking Insights

KAYAK's insights & trends for flights to London

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

What is the cheapest flight to London?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to London was found on the route from Brussels, at £95 return. The most popular connection is from Brussels to London and KAYAK users have found return deals for as low as £95 in the last 3 days.

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London, 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 to London is January, where tickets cost £109 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Belgium is £134 and £134 respectively. For one-way flights, the best month to travel is January with an average price of £109.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Brussels Bruxelles-National Airport £127 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London, 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, you should book around 5 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Southend Airport (SEN), with an average flight price of £134.

Good to know - Cheap tickets from Belgium to London

Low seasonMay
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly (4% more expensive on average)

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

Insights shared by verified travellers who flew the route from Belgium to London 
Verified travelerFlew with British AirwaysBRU-LHRDec 2024
Give yourself ample time for connecting flights. Lhr is a massive airport
DorothyFlew with British AirwaysBRU-LHRJan 2024
Don’t forget the time on each end for baggage and passport control

FAQs - booking London flights

  • What is the cheapest flight to London?

    In the last 3 days, the cheapest flight deal to London was found on the route from Brussels, at £95 return. The most popular connection is from Brussels to London and KAYAK users have found return deals for as low as £95 in the last 3 days.

  • Which London airport is closest to central London?

    Out of the 6 airports in London, London City is the nearest to the city center (8 miles). You'll travel 14 miles to reach the center of London if you land in London Heathrow Airport, 24 miles if you land in London Gatwick Airport, and 28 miles if you arrive in London Luton Airport.

  • How much is a flight to London?

    On average, a flight to London costs £246. The cheapest price found on KAYAK in the last 2 weeks cost £58 and departed from Brussels Bruxelles-National Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as £148. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £413 on average.

  • How does KAYAK find such low prices on flights to London?

    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 to London.

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

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

  • What is the Hacker Fare option on flights to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London 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 to London?

    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 London 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 London?

    The cheapest time of day to fly to London is generally at night, when round-trip flights cost £204 on average. The most expensive time of day to fly to London is generally in the morning, which is peak travel time and where the average cost of a ticket is £441.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from Belgium to London? 25% of our users found flights on this route for £104 or less one-way and £127 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top airlines flying from Belgium to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to London? 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 359 reviews
7.3Boarding
6.1Entertainment
6.2Food
7.9Crew
6.9Comfort
Airline reviews

Too cramped up for the better seats I paid for.

4.0 OkayAnonymous, Aug 2025YUL - MCO
Read more Brussels Airlines reviews

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.

The flight was good. It arrived at Heathrow on time but then there was no transport to take us to the terminal. We sat on the plane for an hour waiting for a bus. I will avoid Heathrow if possible in future. The crew were very apologetic.

we had to walk up stairs to get into the plane--no jetways. Perhaps that's a problem not with the airline but with facilities at Heathrow, Glasgow, and Edinburgh. But it was inconvenient.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

The flight was fine but they made me pay for my carryon bag because they said it was too big at the counter. But it fit under the seat just fine.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Excellent service by the flight crew, and the food was relatively very good compared to other airlines.

Flight was excellent, staff was great. My first time in first class and it was very relaxing and comfortable.

They can separate the young children from people who want to have a rest. It had lots of crying and loud noises from the children.

I had an awful experience with British Airways as they broke the handle of my checked in suitcase and when I went to complain they told me that this was not their responsibility. This has to be one horrible airline that does not take responsibility for the damage that they have created

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Milton Keynes
Eastbourne
Luton
Hounslow
Southend-on-Sea
Slough
Winchester
Croydon
Stansted
Folkestone
Chichester
Maidstone
Colchester
Chelmsford
Crawley
Bedford
Richmond
Hastings
Watford

Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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