The route: the E40 via Ghent and the Ring
The backbone of the journey is the E40, from Jabbeke past Bruges, Ghent and Aalst to Brussels, after which your driver takes the Ring (R0) past Vilvoorde to the airport. From De Panne, Koksijde, Nieuwpoort or Veurne, the first leg is the A18 to Jabbeke; from Ostend it is the A10. From Knokke-Heist, Blankenberge or De Haan, your driver heads inland to Bruges and joins the E40 there.
The well-known bottlenecks are the E17 interchange near Ghent and the final stretch before Brussels. In summer, busy coastal roads add to the mix, especially on Saturdays in high season.