Please be aware that Brussels has multiple airports and that these results are for all airports serving the city.
The best month to arrive at Brussels is February and the most expensive month to fly is December. (Average prices, based on 2732 datapoints.)
The best day to arrive at Brussels is Thursday and it would be best to avoid Sunday, as prices are on average 61.16% higher than on Thursday. (Average prices, based on 959 datapoints.)
The cheapest airline flying to Brussels is Ryanair. They are 71% cheaper than Austrian Airlines. (Average prices, based on 2823 datapoints.)
At Brussels the most flights depart around 15:00. (Hourly flights, based on 3079 datapoints.)
From Brussels it is on average the cheapest to fly to Milan and to Barcelona. (Average prices, based on 1262 datapoints.)
From Brussels most of the flights depart to Geneva, second best connected from Brussels is London. (Daily flights, based on 107 datapoints.)