£37 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 17/6. 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, 0 bags

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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

Fri, 11 Sep - Mon, 14 Sep
Brussels Airlines Logo
21:20 - 21:35
BRU
-
LHR
1h 15mdirect
Brussels Airlines Logo
17:50 - 20:00
LHR
-
BRU
1h 10mdirect
£90Brussels Airlines
Thu, 1 Oct - Sat, 10 Oct
Brussels Airlines Logo
21:20 - 21:35
BRU
-
LHR
1h 15mdirect
Brussels Airlines Logo
06:50 - 08:55
LHR
-
BRU
1h 05mdirect
£90Brussels Airlines
Fri, 2 Oct - Mon, 5 Oct
Brussels Airlines Logo
21:20 - 21:35
BRU
-
LHR
1h 15mdirect
Brussels Airlines Logo
17:50 - 20:00
LHR
-
BRU
1h 10mdirect
£91Brussels Airlines
Fri, 2 Oct - Mon, 5 Oct
Multiple Airlines Logo
17:35 - 07:40
CRL
-
STN
15h 05m
1 stop
Multiple Airlines Logo
20:50 - 11:45
STN
-
CRL
13h 55m
1 stop
£93Multiple Airlines
Wed, 24 Jun - Mon, 6 Jul
Ryanair Logo
11:45 - 22:25
CRL
-
STN
11h 40m
1 stop
Ryanair Logo
21:50 - 18:50
STN
-
CRL
20h 00m
1 stop
£94Ryanair
Thu, 25 Jun - Mon, 29 Jun
Multiple Airlines Logo
18:40 - 07:50
CRL
-
STN
14h 10m
1 stop
Multiple Airlines Logo
22:00 - 09:30
STN
-
CRL
10h 30m
1 stop
£95Multiple Airlines
Thu, 23 Jul - Tue, 18 Aug
Ryanair Logo
06:25 - 18:25
CRL
-
STN
13h 00m
1 stop
Ryanair Logo
09:00 - 08:25
STN
-
CRL
22h 25m
2 stops
£97Ryanair
Thu, 17 Sep - Sun, 20 Sep
Vueling Logo
21:35 - 10:15
BRU
-
LGW
13h 40m
1 stop
Vueling Logo
16:55 - 09:50
LGW
-
BRU
15h 55m
1 stop
£130Vueling
Thu, 1 Oct - Sat, 10 Oct
SWISS Logo
09:40 - 12:35
BRU
-
LCY
3h 55m
1 stop
SWISS Logo
09:00 - 14:15
LCY
-
BRU
4h 15m
1 stop
£196SWISS
Mon, 6 Jul - Mon, 13 Jul
SWISS Logo
19:40 - 18:40
BRU
-
LCY
24h 00m
1 stop
SWISS Logo
08:10 - 18:35
LCY
-
BRU
9h 25m
1 stop
£203SWISS
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 5 days.

In the last 3 days, the cheapest flight deal to London was found on the route from Brussels, at £90 return. The most popular connection is from Brussels to London and KAYAK users have found return deals for as low as £90 in the last 3 days.

What is the cheapest day to fly to London?

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

Based on KAYAK data, the cheapest day to fly to London is Thursday where round-trip tickets can be as cheap as £131. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £398 on average.

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 round-trip 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 November, where tickets cost £71 on average for return flights. On the other hand, the most expensive months are December and June, where the average cost of tickets from Belgium is £167 and £93 respectively. For one-way flights, the best month to travel is February with an average price of £34.

What is the cheapest time of day to fly to London?

The average price for all round-trip flights to London depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to London is generally in the afternoon, when round-trip flights cost £140 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 £181.

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 £154 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 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 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 Stansted Airport (STN), with an average flight price of £78.

Good to know - Cheap tickets from Belgium to London

Low seasonSeptember
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (1% 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 Airways
BRU
-
LHR
Dec 2024
Give yourself ample time for connecting flights. Lhr is a massive airport
DorothyFlew with British Airways
BRU
-
LHR
Jan 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 £90 return. The most popular connection is from Brussels to London and KAYAK users have found return deals for as low as £90 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 £139. The cheapest price found on KAYAK in the last 2 weeks cost £59 and departed from Brussels Bruxelles-National Airport.

  • 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.

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 £108 or less one-way and £154 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 411 reviews
7.3Boarding
7.0Comfort
7.9Crew
6.2Entertainment
6.3Food
Airline reviews

Everything was better but france airlines more better than them

8.0 ExcellentTansia, May 2026
FIH - BRU
Read more Brussels Airlines reviews

Everything was better but france airlines more better than them

Good leg room for people of all sizes. Pleasent crew.

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

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

All good, professional service, and arrived close to on time.

This was a special trip so we booked first class. It was obviously an old plane as the seats weren't that comfortable or spacious. We were delayed 45mins taking off as the "little engine that starts the big engines doesn't work". The powered divider between myself and the next seat in first class didn't work and my electrically powdered seat didn't work so I had to move seats to try and get some sleep. Food and drink were good, crew were great. But I'll never fly with BA again.

Service and food was amazing. Aircraft configuration is weird - stare at a stranger at take off and landing, during flight someone is crawling over your seat. It was lame.

BA Canceled this flight and put us on a flight leaving Aberdeen at 8:00 PM, delaying our return to the states by a full day. The cancellation caused us expenses in both Aberdeen and London and BA was completely unhelpful on the phone and at the airport.

First time flying with them! Loved it! Specially the schedule from Miami and being able to come back directly to New Orleans :)

They lost my luggage on my way to Namibia (I was unable to review that flight as I was in the bush/off line) It took 3 days to get my bag and I had to pay $375.00 to have it transported to my location as it was over 100 Kilometers from that Airport and the local Airlink carrier would not got that far.

Unable to check in online until the morning of flight. No early baggage check available nor any BA personnel present. Poor customer service.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

We waited all day on a delayed plane. More than a 6 hour delay which caused us to miss all connections and spend a second full day traveling. Also missed a day of work that i hadn’t planned on.

Travelling to a place near London?

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

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.