BRU is the Brussels Airport is the closest to Kluisbergen at an hour drive. CDG (Charles de Gaulle) is the Paris, France airport at a 2:45 drive to Kluisbergen area. Maybe a great choice if your looking to visit some of Paris or France. AMS (Amsterdam Airport Schiphol) is the Amsterdam, Netherlands airport at a 2:40 drive to Kluisbergen area. May be a great choice of your looking to explore the Netherlands as well. We would recommend looking at all three airports & things your interested in doing to determine which is for you.
Kluisbergen is not a big city like Brussels where public transportation is readily available. With that in mind, we recommend renting a car for not only ease but budget friendliness. By the time you have purchased your train, bus & taxi expenses, you will have paid for a rental & more. If your traveling all over Europe & doing big cities then i would rent a car Friday to Sunday and then rely on public transportation in the big cities. (We won’t drive in Paris but Brussels, Brugge, Amsterdam are driving friendly & feasible) Note: standard is the norm. If you need an automatic, be sure to include it in your rental car request.