​Underground shortcut: Delhi airport's new subway to slash T2–T3 walking distance by 90%

The subway will improve last-mile connectivity between metro and Terminal 2, ensuring faster, safer and smoother passenger movement. It will enhance convenience and strengthen airport travel experience overall.

Engineers are using the box-pushing method, which avoids large-scale digging. This faster technique helps reduce disruption, manage space constraints, and protect nearby utilities and surrounding airport infrastructure.

The subway will include escalators and smooth access points, making it easier for passengers to move with luggage. It aims to reduce walking effort and improve overall travel comfort.

The project is being developed jointly by Delhi Metro Rail Corporation and Delhi International Airport Limited, focusing on seamless integration between metro services and airport terminal access for travellers.

Construction of the subway began in June last year. It is expected to be completed by the end of this year, marking a key upgrade in airport passenger connectivity infrastructure.

Once completed, the subway will cut the walking distance between T3 and T2 from nearly 750 metres to about 80 metres, making travel between terminals much faster and easier for passengers.

A new pedestrian subway at Delhi airport will directly connect Terminal 3 metro station with Terminal 2, improving passenger movement and reducing dependence on shuttle buses and long walking routes.