Delhi Airport Air Train Project Explained: Route, Cost, Timeline and Passenger Benefits

Delhi Airport plans India’s first driverless Air Train system linking T1, T2, T3, Aerocity and Cargo City with faster airport travel.

By Indrani Priyadarshini

on May 25, 2026

Delhi’s Indira Gandhi International Airport is preparing to launch India’s first driverless Air Train system. The project aims to improve travel between airport terminals and other key areas inside the airport campus.

The Automated People Mover (APM) system will connect Terminal 1, Terminal 2, Terminal 3, Aerocity, and Cargo City through a 7.7-km corridor. The new network will replace the current shuttle bus service for faster and smoother passenger movement.

7.7-km Corridor to Connect Airport Zones

The Air Train route will include both elevated and ground-level tracks. Around 5.7 km of the corridor will be elevated, while the remaining kms will run at ground level. The dedicated transit corridor will allow trains to move separately from airport road traffic. This is expected to reduce delays and improve travel time between terminals.

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Project Cost and Timeline

The project is being developed by Delhi International Airport Limited. The airport operator will fully fund the project. The estimated cost of the Air Train system is between ₹3,000 crore and ₹4,000 crore. Construction is expected to take nearly 30 months. If work stays on schedule, operations could begin between late 2027.

Faster and Easier Travel for Passengers

The Air Train service is expected to remain free for transit passengers travelling between terminals. Visitors and non-passengers may have to pay a small fee.

Airport officials believe the new system will reduce dependence on shuttle buses and make inter-terminal transfers faster and more convenient. The project is also expected to improve the airport’s passenger experience and Airport Service Quality (ASQ) ratings.

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Eco-Friendly Airport Transport System

The electric Air Train network is also expected to reduce traffic congestion inside the airport campus. By replacing many shuttle buses, the airport hopes to lower carbon emissions and support cleaner transport.

Capacity to Handle Thousands of Passengers

The Automated People Mover system is planned to handle around 40,000 to 50,000 passengers daily in the beginning. In the future, capacity could increase to nearly 80,000 to 90,000 passengers every day by increasing train frequency.

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Similar Systems Already Used Worldwide

Driverless people mover systems are already operating at major global airports, including airports in Dubai, Singapore, and Heathrow Airport. Delhi Airport’s new Air Train project will bring a similar modern transport system to India.

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