Brussels Airport (BRU), also known as Zaventem, is the largest airport in Belgium and is considered a medium-to-large European hub. In 2025, the airport handled over 24 million passengers, placing it among the top 30 busiest airports in Europe. It covers approximately 1,245 hectares (over 3,000 acres) and features three main runways arranged in a triangle. Despite its size, the airport is surprisingly easy to navigate because it operates with a single-terminal design. This terminal is divided into two main piers: Pier A (for Schengen flights) and Pier B (for non-Schengen flights). While it is not a "mega-hub" like London Heathrow or Paris Charles de Gaulle, it serves as a major base for Brussels Airlines and TUI fly Belgium and hosts around 260 different companies. For travelers in 2026, BRU is praised for its efficiency and its excellent rail link that connects the airport to the Brussels city center in just 17 minutes.