Cheap flights from London to Brussels from €71

The month of August is, on average, the cheapest month to fly to Brussels from London, with most prices found around €135. If you are unable to visit Brussels during the month of August, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around €146.

Fly from London Heathrow to Brussels Bruxelles-National for the best London - Brussels flight prices

You are more likely to see cheaper flights to Brussels from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around €149 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from London for as low as €118 on momondo.

There is only 1 cabin class 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.

Historically, on average around 21% of flights between London and Brussels have experienced a delay on any given week. The average delay length over the past 12 months has been 98 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

The number of flights available between London and Brussels is 11 per day as of June 2026. The most frequent departure time is 11:00, with 68% of daily flights leaving at midday.

The number of flights available between London and Brussels is 83 per week as of June 2026. The most frequent departure day is Tue, with 30% of weekly flights leaving on this day.