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 May. (Average prices, based on 1084 datapoints.)
The best day to arrive at Brussels is Thursday and it would be best to avoid Tuesday, as prices are on average 74.48% higher than on Thursday. (Average prices, based on 1510 datapoints.)
The cheapest airline flying to Brussels is Ryanair. They are 77% cheaper than Austrian Airlines. (Average prices, based on 1156 datapoints.)
At Brussels the most flights depart around 17:00. (Hourly flights, based on 1357 datapoints.)
From Brussels it is on average the cheapest to fly to Madrid and to Milan. (Average prices, based on 161 datapoints.)
From Brussels most of the flights depart to Frankfurt, second best connected from Brussels is Stockholm. (Daily flights, based on 73 datapoints.)