If you're looking to fly from London Heathrow to Brussels, you might like to know that 26 / Sep / 2025 currently has the cheapest flights. At the moment, there are three airlines flying to Brussels. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Brussels.
The most popular airlines offering flights to Brussels are Aer Lingus, British Airways & Air Baltic. Aer Lingus is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
Generally speaking, the flight from London Heathrow to Brussels takes around 4 hrs 20 mins. The fastest flight takes 1 hrs 5 mins to cover the 347 km distance. You can view all flight times yourself in the results list.
November is normally the cheapest month to fly to Brussels, but it’s important to try different options when you search. Searching by month, for instance, will show you the best time of the week to fly. February is always the most expensive time to fly but, if you check regularly and book early, you have a better chance of getting a good deal.
