As of 2026, Paris Charles de Gaulle (CDG) officially has three main terminals (1, 2, and 3), but the numbering and layout can be quite complex. Terminal 1 is the iconic "octopus" shaped building, which was recently refurbished and serves many international and Star Alliance carriers. Terminal 2 is the largest and is divided into seven distinct sub-terminals (2A through 2G) that are connected by walkways or shuttles; this is the primary hub for Air France and SkyTeam. Terminal 3 is a separate, more basic facility primarily used by low-cost and charter airlines. In a major move to reduce traveler confusion, CDG began a massive signage overhaul in 2026 to transition toward a simpler "1 through 7" numbering system, with the project expected to be fully completed by early 2027. Currently, the CDGVAL light-rail shuttle remains the best way to move between the terminals and the various long-term parking lots. Because CDG is one of the busiest hubs in the world, travelers should always double-check their specific boarding hall (e.g., 2E, Hall K) on their boarding pass, as the walk between sub-terminals can take 15 to 20 minutes.