The bus station is at airport's Level 0, below the arrivals hall (Level 2). You can get there thanks to the escalators or the elevators.
THE AIRPORT LINE
From Monday to Friday until 8 PM : Line 12 Brussels Airport - Brussels City (Schuman stop)
After 8 PM, on week-ends and public holidays : Line 21 Brussels Airport - Luxembourg (Schuman stop)
One way ticket : 4.50€ (sold on sales automat GO) / 6€ (sold inside the bus)
From SCHUMAN to GENERATION EUROPE
From SCHUMAN to JACQUES BREL
On foot : about 20 minutes
THE LIJN LINE
One way ticket (60 minutes) : 3€ to buy in a vending machine or inside the bus from the bus driver.
Travel time : about 30 minutes
From the NORTH STATION to GÉNÉRATION EUROPE
Bus 20 (Etangs Noirs stop)
On foot : about 30 minutes
From the NORTH STATION to JACQUES BREL