£49 Find Cheap Flights from Belgium to London – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belgium to London

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Belgium to London

Thu, 8 Oct - Thu, 15 Oct
Multiple Airlines Logo
06:35 - 13:50CRL  Charleroi Brussels-LGW London Gatwick
8h 15m1 stop Barcelona-El Prat
Multiple Airlines Logo
21:30 - 08:40LGW  London Gatwick-CRL Charleroi Brussels
10h 10m1 stop Dublin
£92Multiple Airlines
Tue, 6 Oct - Wed, 7 Oct
Ryanair Logo
10:00 - 15:45BRU  Brussels Bruxelles-National-LTN London Luton
6h 45m1 stop Dublin
Ryanair Logo
19:05 - 09:35LTN  London Luton-BRU Brussels Bruxelles-National
13h 30m1 stop Dublin
£93Ryanair
Mon, 14 Dec - Thu, 17 Dec
Brussels Airlines Logo
16:55 - 17:05BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 10mdirect
Brussels Airlines Logo
11:05 - 13:15LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 10mdirect
£93Brussels Airlines
Mon, 9 Nov - Sat, 14 Nov
Ryanair Logo
19:25 - 23:15CRL  Charleroi Brussels-STN London Stansted
4h 50m1 stop Bergamo Orio Al Serio
Ryanair Logo
09:25 - 16:05STN  London Stansted-CRL Charleroi Brussels
5h 40m1 stop Bergamo Orio Al Serio
£93Ryanair
Wed, 7 Oct - Wed, 14 Oct
Brussels Airlines Logo
16:55 - 17:05BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 10mdirect
Brussels Airlines Logo
11:05 - 13:15LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 10mdirect
£94Brussels Airlines
Thu, 1 Oct - Mon, 5 Oct
Brussels Airlines Logo
16:55 - 17:05BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 10mdirect
Brussels Airlines Logo
17:55 - 20:00LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 05mdirect
£94Brussels Airlines
Tue, 22 Sep - Wed, 23 Sep
Ryanair Logo
13:25 - 19:30CRL  Charleroi Brussels-LGW London Gatwick
7h 05m2 stops Manchester Dublin
Ryanair Logo
12:30 - 18:00LGW  London Gatwick-CRL Charleroi Brussels
4h 30m1 stop Cork
£94Ryanair
Sat, 6 Mar - Mon, 8 Mar
British Airways Logo
18:10 - 18:20BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 10mdirect
British Airways Logo
08:40 - 10:55LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 15mdirect
£101British Airways
Fri, 19 Feb - Mon, 1 Mar
British Airways Logo
21:00 - 21:05BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 05mdirect
British Airways Logo
18:10 - 20:25LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 15mdirect
£102British Airways
Fri, 22 Jan - Sun, 24 Jan
British Airways Logo
21:00 - 21:05BRU  Brussels Bruxelles-National-LHR London Heathrow
1h 05mdirect
British Airways Logo
08:15 - 10:30LHR  London Heathrow-BRU Brussels Bruxelles-National
1h 15mdirect
£111British Airways
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?

In the last 5 days, the cheapest flight deal to London was found on the route from Brussels, at £92 return. The most popular connection is from Brussels to London, while KAYAK users have found return deals for as low as £93 in the last 5 days.

What is the cheapest day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Tuesday where round-trip tickets can be as cheap as £130. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are £213 on average.

What is the cheapest month to fly to London?

The cheapest month for flights to London is March, where tickets cost £114 on average for return flights. On the other hand, the most expensive months are July and May, where the average cost of tickets from Belgium is £162 and £162 respectively. For one-way flights, the best month to travel is November with an average price of £95.

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

The cheapest time of day to fly to London is generally in the afternoon, when round-trip flights cost £108 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 £164.

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 £126 return.

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

To get a below average price, you should book around 5 weeks before departure, which saves you about 19% 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 £132.

Good to know - Cheap tickets from Belgium to London

Low season

September
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (13% 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-Dec 2024
Give yourself ample time for connecting flights. Lhr is a massive airport
DorothyFlew with British Airways-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 5 days, the cheapest flight deal to London was found on the route from Brussels, at £92 return. The most popular connection is from Brussels to London, while KAYAK users have found return deals for as low as £93 in the last 5 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 £120. The cheapest price found on KAYAK in the last 2 weeks cost £49 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 £78 or less one-way and £126 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

 
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 429 reviews
7.0Comfort
7.4Boarding
6.3Food
7.9Crew
6.2Entertainment
Airline reviews

Terrible flight. 1. They’ve only one option for food. 2. Seats are very cramped and screens are tiny 3. No pillow or blanket provided on long haul flight

2.0 MediocreAbhisek, Aug 2026
Read more Brussels Airlines reviews

Terrible flight. 1. They’ve only one option for food. 2. Seats are very cramped and screens are tiny 3. No pillow or blanket provided on long haul flight

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

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 ?

Terrible seats. Whoever designed the seats should try taking a long flight in it themselves.

Food quality is deteriorating each time, last year was very good. I avoid the plane food lately.

Been flying on various airlines, all over the world, for 50+ years. The food on Brussels Air was easily the worst I ever endured.

I have traveled to probably over a hundred locations worldwide, but had only one mixup of airport in Shanghai. Until Iceland and Stockholm. Reykjavik has 2 airports, Stockholm 4 (!). Please indicate clearly when a departure flight is scheduled from an aiport other than the international aiport. That would greatly reduce stress. Thanks

More than one hour detail with no explanation and no compensation

my husband's monitor did not work. there was a visibly ill family in my husband's row.

Check in desks at Bodrum we’re not labelled properly to the point we ended up queuing at the desk only for the signs for business and economy to be put up later and we had to move lines to go into the economy queue. By the time we got to the front, we ended up be ushered to the business queue anyway to get checked in. The flight left on time but then we had to circle the air for a good 15 mins and then when we landed we had to wait to be taxied for another hour. Our baggage didn’t arrive but nobodies did but were told after an hour of waiting that no more bags would be delivered to all passengers had to fill out a form to get their bags delivered. Could have told us that a while ago. Very poor communications

Boarding was seamless, crew were great. Less disruptions on the night flight would have improved the experience and turning off lights earlier.

Worst customer service I've ever experienced on a flight. They downgraded my seat without giving me any other options, then sat in a seat with an arched back for 10 hours. I was not able to get ahold of any customer service representatives to understand what alternatives I might have, or how they will be handling a refund for the difference in fares between business and premium economy that I was downgraded to.

British airways needs to improve their luggage handling process and communications. The luggage was lost/left in UK. But, this was not communicated to me as a traveler and because of the wait at the carousel in Seattle (we have to go through customs and immigration on arrival to US) I missed the connecting flight and had to be rebooked. No one informed me that the luggage wasn't there, and there was no one there at the carousel to check with or help me get through security faster. I wasn't the only one- there were a lot of people waiting for luggage that didn't arrive.

My bags were lost. I waited in a line for 5 hours after I landed and got no resolution to the issue.

Easily one of the best flights I’ve ever taken. Worth it to upgrade slightly. Crew was phenomenal. Just wish the man sat next to me kept his shoes on. There should be a rule about that. But I wish I could take every flight with BA.

I have nothing but amazing things to say about every staff member I encounter on my transport from Brussels (Bru) to New York (jfk) via London (lhr) after many flight delays and changes every colleague I asked for help gave me the utmost respect and did everything in their power to make sure I arrived in Washington DC to make it in time for my brothers wedding. The flight attendants on the flight from Bru to lhr move me to the front of the plane so I could get off quickly and try to make it to my connection to dc, when I missed that wagans at the support desk did everything in his power to get me to dc via two transfers. Especially during the busy holiday season I am so so grateful for the amazing customer service that I encountered today.

Firing with British airways leaves me feeling stressed and disappointed. They are substandard in so many aspects of airline travel.

Worst trans-Atlantic flight in years! The seats were incredibly tight, both in width and depth. The back selection was so cold, it was like traveling in a refrigerator. Although I had an entire row, the seat arms would not go up, so I could not take advantage of it to sleep. However, the crew was smiling and helpful and really seemed to enjoy their jobs. The food was the worst I have ever experienced on any flight. The PA system blasts announcements to the point of hurting my ears when using the audiovisual equipment. Not safe or sat. Also, I did not like the bait and switch tactic. I put in a search with one bag and the other flights had put that into their price, but BA did not and made me pay extra for it which would have made the price comparable to others. Also, even at check in there was no “choice” of seat, unless you paid extra for it even in the same row. No other airline I have been on does this. Once check in begins, normally, you can choose any unoccupied seat in your category. These tactics and the lack of comfort means I will never fly BA again.

An early flight and a bit confusing where to check in with British Airways; good we asked at the information counter the night before as we stayed overnight at the Sheraton on the departure level.

Travelling to a place near London?

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

More options for your flight to London