My name is Miguel, i'm Portuguese, and I'm planing to fly to Brussels (Intenational Airport) in September.
In the same day, I will have another flight from the Charleroi Airport, about 4 hours later.
What is the fast way for me, to go from the Brussels International Airport, to the Charleroi Airport?
Ryanair run regular buses from the main bus terminal to Charleroi airport for about 10 euros (price might have gone up since I was there).
It takes over an hr I think, slightly longer depending on the traffic.
Its a comfortable reliable service.
Hope that helps
I think the best option is to get on a train from the Airport in Zaventem (BRU), to the trainstation in Brussels (Brussels Midi), and to take on of the shuttle busses to the airport in Charleroi (CRL)http://www.charleroi-airport.com/BSCA/SiteEN.nsf/.GeneralW/D80FA26A28492CA2C1256E270034B2AB?OpenDocument&Key=menu1
Yo can check on the trai company web: www.sncb.be for schedules and once in Charleroi trai station ,you have a bus every 15 minutes to the airport, the trip is +/- 15 minutes and cost around 2 euros. The trais is around 10 Euros, and is around 1 hour 45 minutes. I think that this option is a little bit tight....
Enjoy and do not hesitate if you need more info...