Cheap flights from London to Brussels

from as little as £123

14 nights in Brussels, departing London Heathrow on 12 / Jul / 2025 with British Airways (price found 10 hours ago)

Subject to availability, prices correct of the last 24 hours
Brussels

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The London / Brussels route

All 323 km of it

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Brussels flight facts

What you need to know

Alternative flights from the UK to Brussels

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Brussels

Today alone, Netflights has searched over 973 flights. 12 / Jul / 2025 is currently the lowest priced day of the year to fly the London/Brussels route. There are around 377 flights on any given week from the UK to Brussels and the cheapest month to fly right now is July.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

0 °C

AVG

10 °C

HIGHEST

22 °C

Rainfall (mm)
LOWEST

53 mm

AVG

65.6 mm

HIGHEST

78 mm

Key facts about Brussels

How to get cheap flights from London to Brussels

Tips and advice from our flight experts

Book cheap flights from London to Brussels with Netflights. We scan all 377 of the weekly flights going via Brussels, so that you can compare them in one place. If you can’t find what you’re looking for, simply adjust the filters to widen your search.

Generally, London Heathrow (LHR) is the most popular choice for flights to Brussels. And the most popular airlines are Aer Lingus, British Airways & Aer Lingus. But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.

On average, the 323 km flight to Brussels takes 5 hrs 30 mins. If you want a bargain, keep an eye out for flights with British Airways, as they often have good deals. Or you could broaden your search by looking at flights to other airports in Belgium to see if there are any cheaper options.

Today, we’ve scanned 973 flights, to help you see all the options for your trip to Brussels. Once you’ve chosen your flight, why not check out our deals on accommodation and car hire? You’ll find lots of hotels in Belgium, including some close to the airport – perfect if you're arriving late or leaving early.

Other popular destinations near Brussels

Where other people are flying to

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