Cheap flights from London to Brussels from $71

In general, January is the cheapest month to fly from London to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $155. If you are unable to visit Brussels during the month of January, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $158.

On average, the least expensive day to fly to Brussels from London is on a Saturday. momondo users have found tickets for Saturday departures for as low as $243. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Tuesday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $649.

According to our data, the cheapest time of day to fly to Brussels is at noon. momondo users have found flights departing from London to Brussels at noon for as low as $214. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $499.

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 $180 when searching 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 $146 on momondo.

There are 3 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.

Historically, on average around 20% 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 100 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

As of September 2026, there are 15 flights per day flying from London to Brussels. The most common time of day flights depart is 11:00AM, with 57% of flights taking off at noon.

109 flights are operational weekly from London to Brussels as of September 2026. The most popular departure day for this route is Thu, with 22% of flights per week taking off on this day.