Please be aware that Brussels has multiple airports and that these results are only for Brussels Airport.
The best month to arrive at Brussels is February and the most expensive month to fly is April. (Average prices, based on 1285 datapoints.)
The best day to arrive at Brussels is Monday and it would be best to avoid Sunday, as prices are on average 63.6% higher than on Monday. (Average prices, based on 299 datapoints.)
The cheapest airline flying to Brussels is Air Malta. They are 66% cheaper than TAP Portugal. (Average prices, based on 1406 datapoints.)
At Brussels the most flights depart around 08:00. (Hourly flights, based on 1506 datapoints.)
From Brussels it is on average the cheapest to fly to Barcelona and to London. (Average prices, based on 272 datapoints.)