This information about transportation options in Aalst might help your romantic trip get off to a smooth start: To get to Aalst, book a flight to Brussels Airport (BRU), which is the closest major airport, located 19.5 mi (31.4 km) from the city centre. If you want to travel outside the city, take a train from Aalst Station, Aalst-Kerrebroek Station or Aalst Erembodegem Station.