• Passengers who hold a Student Multi, a Section or Half-Time Season ticket to Brussels Airport - Zaventem
  • Passengers who travel for free, e.g.: -Free passes and free tickets NMBS/SNCB staff (active and retired)
  • Card on Patriotic Grounds
  • Free Carer Card
  • Lower House and Senate
  • Railway police officers
  • Receivables with code 906 and 907
  • Railease 

No supplement in 2nd class only

  • Children under 12 under Free 4 Kids conditions 
  • Journalists (code 043)
  • Blind persons 
  • Uniformed federal and local police officers 

If you’re travelling with:

  • Senior Ticket*
  • Youth Holidays
  • Passes (Youth Multi, Standard Multi, Local Multi, etc.)
  • A Eurostar, TGV or Thalys ticket combined with a national ticket
  • Receivables with code 901, 903, 904 or 909 (the price of the Brussels Airport Supplement (Diabolo) is indicated on the ticket issued in exchange for the receivable)
  • Receivable 65B for Proximus and Bpost (in the form of an extra ticket 'Brussels Airport Supplement' (Diabolo)) 
Buy your Brussels Airport Supplement
*= If you are travelling to or from Brussels Airport-Zaventem with a Senior Ticket:
  • Your Senior Ticket contains a barcode that opens the gates at the airport and automatically includes the Brussels Airport Supplement (Diabolo) for the outbound leg of your return journey. This Brussels Airport Supplement (Diabolo) is automatically added once to the fixed price of your Senior Ticket.
  • If you want to use your Senior Ticket for a return trip on the same day, you will have to buy an additional Brussels Airport Supplement (Diabolo) for your inbound leg.