[2] During World War II, the site was arranged as an Advanced Landing Ground (A-87) for the allied air forces, from 14 September 1944 until 10 August 1945.

After the war, the Gosselies airfield became a public aerodrome operated by the Belgian State through its agency Régie des Voies Aériennes (RVA)/Regie der Luchtwegen (RLW), but the main activities of the site remained aeronautical constructions (installation of the Société Anonyme Belge de Constructions Aéronautiques (SABCA) in 1954, then the Société Nationale de Construction Aéronautique (SONACA) in 1978, taking over the activities of Fairey).

[citation needed] On 9 July 1991, the limited company Brussels South Charleroi Airport (BSCA) was created.

[3] Although criticised for the subsidies paid by the Walloon government to help its installation, Ryanair opened new routes from Brussels South Charleroi (they also closed two destinations: London–Stansted and Liverpool, although Stansted was re-introduced in June 2007 before being suspended again).

[9] On 8 October 2021, the runway extension was inaugurated in the presence of the Walloon Minister in charge of Airports Jean-Luc Crucke[10] The SABCA facility on site conducts depot-level maintenance, repair and overhaul work on United States Air Force F-16s based in Europe.

[11] The following airlines operate regular scheduled and charter flights at Brussels South Charleroi Airport:[12] There are several shuttles to different cities in the neighbouring countries (Luxembourg, Metz, Thionville, Lille) plus a regular coach service that runs from the airport to Brussels-Central railway station.