The main gateway to Belgium is Zaventem or Brussels airport. From Antwerp, the distance is about 44 kilometers. There are several options to get from Brussels airport to Antwerp. You can get to Antwerp by train, by car or by bus. The fastest way to get from Brussels airport to Antwerp is by train and it takes 33 minutes. The car takes maybe 40 minutes depending on traffic. The bus is approximately 45-50 minutes. You can also check my Antwerp City Guide for more information on Antwerp.