As of 2026, the most efficient way to get from Brussels Airport (Zaventem) to the city center is by train, which costs €10.80 for a one-way ticket. This price includes the mandatory "Diabolo" airport supplement of approximately €6.70. Trains run every 10 minutes and take roughly 17 minutes to reach Brussels Central. If you are on a strict budget, the STIB Airport Line (Bus 12) is a cheaper alternative, costing €7.00 if you pay via contactless card on board (or €7.50 for a physical ticket). For those preferring a taxi, the fare is not fixed and is calculated via meter; you can expect to pay between €50.00 and €60.00 depending on traffic and your specific destination within the Pentagon (city center). Private transfers like "Welcome Pickups" or Uber typically range from €45.00 to €55.00, providing a middle-ground option for groups or those with significant luggage.