From Gateway to Hub: A Steady Climb

Delhi Airport climbed from the 9th position in 2019 to the 5th position in 2025. It is the fifth busiest hub airport in Asia Pacific region as per the latest data from aviation analytics firm OAG (Official Airline Guide).

OAG analysis is based on airline seat supply. This metric measures how airlines plan and deploy capacity. In 2025, Delhi Airport recorded 46.18 million one-way departure seats. This shows a sustained capacity growth. Increasing capacity is a strong indicator of airline confidence in an airport. This confidence may occur from the network or connectivity an airport provides.

Post the pandemic, while some were struggling to get back to pre-COVID traffic levels, Delhi Airport was already working to position itself in the top 5 busiest hub airports. It has not only recovered in terms of traffic flow but has been working extensively to create a robust network of destinations both domestic and international.

Airline Expansion Fuelling the Hub Strategy

The biggest drivers behind capacity surge for Delhi Airport have been two major and largest carriers – Indigo and Air India. Indigo recorded 8% year on year growth in international seats. Its growing number of fleets and expansion of network across domestic and short haul international destinations supports its record-breaking growth. While Air India registered a 2% growth in the international seats. Both carriers increased international flight frequencies by 1-3% from Delhi.

Asia & Europe: Fastest Growing Corridors

Delhi Airport’s evolving role as a hub is evident with its expanding routes to East Asia, Southeast Asia and Europe. Indigo recorded 11% year on year growth to East Asian destinations and 36% for Southeast Asian destinations. On the other hand, Air India registered 29% growth to Southeast Asia and 18% on European routes. Together these trends highlight a growing east bound network that can feed the long haul Europe connectivity.

This pattern is a wonderful reflection of a hub between Asia and Europe, which is, exactly how Delhi Airport wants to position itself.

New Destinations and Expanding Network

A great network is the hallmark of a hub airport. Delhi Airport is continuously expanding on this front. It has added 11 new destinations and is now connected to more than 150 destinations.

Improved connectivity to Tier 2 and Tier 3 cities like Bhuj, Trichy, Purnia, Navi Mumbai, Jorhat and Rewa have enhanced domestic reach. On the international front it has added destinations like Manila, Krabi, Shanghai, Guangzhou and Manchester.

Most of these routes have been launched by Indigo and Air India. Together they strengthen Delhi Airport’s role as a connector.

Outpacing Established Global Hubs

With the 5th position ranking in 2025, Delhi Airport has surpassed several globally recognised hubs like Suvarnabhumi Airport in Thailand, Singapore Changi Airport and Incheon International Airport in South Korea.

Delhi Airport has the capacity to handle 100 million passengers per annum. It is ready to align with the needs of the growing air travel demand.

As Indias air travel demand rises, Delhi Airport is no longer just keeping paceit is setting the direction. With scale, growing connectivity, and the capacity to handle 100 million passengers a year, it is increasingly positioned to become the AsiaEurope connector that airlines and travellers rely on.

The 5th-busiest hub ranking in Asia Pacific is a milestonebut the bigger story is what comes next: Delhi Airports shift from gateway to global hub is already underway.