Cheap flights from Brussels to London from £35

The cheapest month to fly to London from Brussels is in March. Flight prices, which tend to average around £109, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Brussels averaging around £116.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £131. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Brussels to London for around £447.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £141. Flights in the morning are often more expensive, with an average ticket price of £201.

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

You are more likely to see cheaper flights to London from Brussels when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £126 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Brussels for as low as £97 on momondo.

There are 2 cabin classes available to choose from on Brussels to London 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 15% of flights between Brussels and London 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 morning 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. Monday 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 15% of their flights experiencing any sort of delay.

As of February 2026, 9 flights take off from Brussels and land in London each day. The most common flight departure time for this route is 09:00, with 59% of daily flights taking off at midday.

69 flights are operational weekly from Brussels to London as of February 2026. The most popular departure day for this route is Thu, with 32% of flights per week taking off on this day.