Yes, the Changi Airport Skytrain is entirely free of charge for all passengers and visitors in 2026. This automated people mover system operates in both the "Transit" (airside) and "Public" (landside) areas, connecting Terminals 1, 2, and 3. A typical journey between terminals takes only about 4 minutes, and trains run frequently, usually every 4 minutes from 5:00 AM to 2:30 AM daily. It is important to note that the Skytrain does not serve Terminal 4; instead, there is a separate free shuttle bus that runs between Terminal 4 and Terminals 1, 2, and 3. Additionally, while the Skytrain passes through the famous Jewel Changi Airport, it does not have a station inside the Jewel itself. To visit the Jewel from the Skytrain, you should get off at Terminal 1, which is directly connected to the complex. During the Skytrain's brief maintenance window in the early morning hours, free shuttle buses are provided in the public area to ensure 24/7 connectivity between the terminals.