Delhi Takes the Crown
The title of India's busiest airport belongs to Indira Gandhi International Airport (DEL) in New Delhi. For the financial year 2025-26, the airport handled a staggering 7.87 crore (78.7 million) passengers. This figure firmly places it ahead of its closest
competitors, Mumbai's Chhatrapati Shivaji Maharaj International Airport, which saw 5.53 crore passengers, and Bengaluru's Kempegowda International Airport with 4.45 crore passengers. Delhi's dominance is not a recent phenomenon; it has consistently been India's top airport by passenger traffic since 2009. Its performance is so significant that it also ranks among the world's elite, placing 11th globally in 2025 and standing as the only Indian airport in the top 15.
A Strategic Hub for India and the World
Delhi's position as the busiest airport is no accident. Geographically, it serves as the primary gateway to the vast expanse of North India. For travellers heading to the capital, the surrounding National Capital Region, or tourist destinations in neighbouring states, Delhi is the most convenient entry point. Furthermore, it has cemented its role as a crucial international transit hub. The airport offers excellent connectivity to Europe, North America, and the Middle East, making it a preferred layover point for passengers travelling between Southeast Asia and the West. In May 2026 alone, transfer passengers accounted for 27% of the airport's total traffic, highlighting its critical role in connecting flights and people.
An Engine of Economic and Logistical Power
Beyond passenger numbers, IGI Airport is a formidable economic engine. It is also the country's busiest airport for cargo traffic. In August 2026, the Civil Aviation Minister flagged off an expanded transshipment cargo operation at the airport, aimed at making India a global air cargo hub by reducing transit times and costs. This initiative leverages Delhi's strategic location to connect cargo from cities like Bengaluru and Mumbai to international destinations like London and Copenhagen more efficiently. The entire airport ecosystem, from airlines and ground handling to retail and hospitality within the associated Aerocity, generates significant employment and contributes to the region's economic vitality. The airport is a hub for major Indian carriers like Air India and IndiGo, with around 80 airlines operating from its terminals.
World-Class Infrastructure That Keeps Pace
Handling such immense traffic requires state-of-the-art infrastructure. The airport is operated by Delhi International Airport Limited (DIAL), a consortium led by the GMR Group. It boasts four runways and three main passenger terminals—T1, T2, and T3. The integrated Terminal 3, with a capacity to handle 45 million passengers per annum on its own, is the crown jewel, managing all international flights and a significant portion of domestic traffic. To manage the flow, the airport has invested in technology, including contactless e-boarding gates and an advanced baggage handling system capable of processing 13,000 bags per hour.
Racing Towards the Future
Delhi's airport is not resting on its laurels. With passenger traffic continually on the rise, ambitious expansion plans are already in motion. A master plan for 2026-2036 aims to increase the airport's annual passenger handling capacity from its current 106 million to 125 million, and potentially even 140 million. These plans include the construction of a new pier at Terminal 3 and the potential development of a new Terminal 4. An elevated Air Train to seamlessly connect the terminals is also part of the long-term vision. This constant evolution is crucial as Delhi prepares to not only accommodate future growth but also maintain its competitive edge as India's premier aviation gateway.
