Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London to Brussels
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
KLM flights from London to Brussels
Our best KLM deals on London to Brussels flight tickets
British Airways flights from London to Brussels
Our best British Airways deals on London to Brussels flight tickets
See travel insights to Brussels from
How to get the cheapest flight ticket from London to Brussels
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Brussels?
The month of January is, on average, the cheapest month to fly to Brussels from London, with most prices found around €121. If you are unable to visit Brussels during the month of January, then departing from London during the month February is also very affordable. Most momondo users find prices during this month for around €129.
What is the cheapest day to depart on your flight to Brussels?
On average, the least expensive day to fly to Brussels from London is on a Monday. momondo users have found tickets for Monday departures for as low as €0. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Brussels on Tuesday is €1,410.
What is the cheapest time of day to depart on your flight to Brussels?
At midday is the cheapest time of day to fly from London to Brussels when you can find flight prices for as low as €0. Flying to Brussels at midday is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of €494.
What is the cheapest London to Brussels flight route?
Fly from London Heathrow to Brussels Bruxelles-National for the best London - Brussels flight prices
How far in advance should I book a flight to Brussels?
You are more likely to see cheaper flights to Brussels from London when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around €147 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from London for as low as €110 on momondo.
What cabin class options are available on London to Brussels flights?
There are 1 cabin classes available to choose from on London to Brussels flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from London to Brussels on average per day?
The number of flights available between London and Brussels is 14 per day as of April 2025. The most frequent departure time is 06:00, with 68% of daily flights leaving at midday.
How many flights depart from London to Brussels on average per week?
The number of flights available between London and Brussels is 102 per week as of April 2025. The most frequent departure day is Mon, with 27% of weekly flights leaving on this day.
Cheap London to Brussels flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Brussels
How far is London to Brussels by plane?
A flight from London to Brussels will travel around 319.9 km. Typically, this will take 1h 00m by plane in normal conditions.
When did momondo last update prices for flights from London to Brussels?
Prices for flights from London to Brussels were last updated today.
How old do you have to be to fly from London to Brussels?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Brussels.
What documentation or ID do you need to fly to Brussels?
The necessary travel and health documents for your Brussels trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from London to Brussels?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Brussels from London.
Can I find flights from London to Brussels with flexible booking policies on momondo?
momondo does allow users to show only those flights to Brussels from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Brussels?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Brussels from London.
I’m not ready to book a flight from London to Brussels right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from London and alert you when they change.