Please be aware that Brussels has multiple airports and that these results are for all airports serving the city.
The best month to fly between Brussels and Malaga is November and the most expensive month to fly is May. (Average prices, based on 397 datapoints.)
The best day to arrive at Brussels is Monday and it would be best to avoid Tuesday, as prices are on average 124.07% higher than on Monday. (Average prices, based on 361 datapoints.)
The cheapest airline flying from Brussels to Malaga is Vueling. They are 60% cheaper than Transavia. (Average prices, based on 403 datapoints.)