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 July. (Average prices, based on 1739 datapoints.)
The best day to arrive at Brussels is Thursday and it would be best to avoid Sunday, as prices are on average 34.54% higher than on Thursday. (Average prices, based on 2251 datapoints.)
The cheapest airline flying to Brussels is Ryanair. They are 74% cheaper than Lufthansa. (Average prices, based on 1830 datapoints.)
At Brussels the most flights depart around 06:00. (Hourly flights, based on 2134 datapoints.)
From Brussels it is on average the cheapest to fly to Milan and to Alicante. (Average prices, based on 521 datapoints.)
From Brussels most of the flights depart to Geneva, second best connected from Brussels is Madrid. (Daily flights, based on 128 datapoints.)