From Mons: Charleroi or Brussels
From Mons and the Borinage, Brussels South Charleroi Airport is often the nearest airport. Your driver heads east on the E42, past La Louvière, to Gosselies. Handy for low-cost flights to Spain, Portugal or Italy.
For Brussels Airport (Zaventem), the route follows the E19 north via Casteau and Nivelles, then the Brussels Ring. In the morning rush the approaches to Brussels can be very busy, so choose a pickup time with a good margin. Liège, Eindhoven, Schiphol, Düsseldorf and Cologne Bonn are available too; the price table shows the fixed fare for each airport.