Navigating Paris-Charles de Gaulle (CDG), one of the largest airports in Europe, is primarily facilitated by the CDGVAL, a free automated shuttle train. The CDGVAL serves as the spine of the airport, connecting Terminal 1, Terminal 2, and Terminal 3, as well as the long-stay car parks and the Roissypôle RER station. It runs 24/7, with trains appearing every four minutes during peak hours. Within the sprawling Terminal 2, which consists of seven distinct halls (2A through 2G), additional shuttle buses like the N1 and N2 provide transit between halls. For passengers who have already passed security, the LISA shuttle connects the satellite gates (Halls K, L, and M) of Terminal 2E. While CDG is famously complex, 2026 signage is highly standardized with color-coded paths. Most terminal-to-terminal transfers take between 10 and 20 minutes, though travelers are advised to factor in additional time for security if moving between non-connected airside zones.