Airport Industry News
Tiana May
05 Jan 2026
Singapore’s Changi Airport has completed significant underground infrastructure to support the future integration of Terminal 5 (T5) with its existing terminal network.
A series of underground tunnels extending approximately 1.7 kilometres has been constructed to connect Terminal 2 (T2) with the future T5 site. The tunnels are intended to allow airport operations to function as a single, integrated system once T5 becomes operational.







