IndiGo Airlines, the largest low-cost carrier in India, has firmly established itself as a dominant force in the country’s domestic aviation market. With a fleet nearing 400 aircraft and more than 2,200 daily flights, IndiGo controls an impressive 60% of the domestic market share. The airline’s expansive network covers 91 cities, linking both major metropolitan hubs and smaller Tier-II and Tier-III airports across India.

IndiGo’s success is not just about the size of its fleet, but how strategically its planes are deployed to serve key routes across the nation. Below, we take a closer look at the airline’s top 10 domestic routes, showcasing the extensive reach and influence it holds in the Indian skies.

1. Delhi-Mumbai

The Delhi-Mumbai route stands as IndiGo’s busiest, connecting the national capital with the financial powerhouse of India. With around 20 flights per day, sometimes even more, this route serves more than 2 million passengers annually. IndiGo operates its A321neo aircraft on this sector, offering 220 seats including a business class section, making it a popular choice for both business and leisure travelers. The 2-hour flight between Indira Gandhi International Airport and Chhatrapati Shivaji Maharaj International Airport is a key part of IndiGo’s operations.

2. Delhi-Bengaluru

The Delhi-Bengaluru route is another vital link in IndiGo’s network, serving close to 2 million passengers each year. IndiGo runs 30 flights daily, with 15 one-way flights each day. Bengaluru’s Kempegowda Airport has become one of the airline’s primary hubs, and IndiGo recently upgraded all flights to A321neos, which offer added comfort and business-class seating. The airline has also adjusted its flight schedules to accommodate the increasing demand for early morning departures, catering to business travelers in the region.

3. Mumbai-Bengaluru

The Mumbai-Bengaluru sector is one of IndiGo’s busiest and most important routes, transporting about 1.5 million passengers annually. IndiGo operates multiple flights daily on this 90-minute route, providing a vital connection between India’s commercial and tech capitals. The airline has introduced its IndiGoStretch business-class seating on this route, further underlining its premium offering. Despite occasional delays at Mumbai’s airport, IndiGo’s punctuality remains a major selling point for travelers on this popular route.

4. Delhi-Hyderabad

Hyderabad’s rapid growth in the tech and pharmaceutical sectors has made the Delhi-Hyderabad route a crucial link for IndiGo. With around 1 million passengers annually, IndiGo operates 12 daily one-way flights on this route, a reflection of the increasing demand for travel between the two cities. Hyderabad’s Rajiv Gandhi International Airport sees a significant share of IndiGo’s flights, with the airline capturing 65% of the market share. The 2-hour flight offers flexibility and is well-suited for business travelers, making it an essential route in IndiGo’s network.

5. Bengaluru-Hyderabad

The Bengaluru-Hyderabad route, just a 1-hour flight, is a vital corridor connecting two of South India’s major tech hubs. With about 800,000 passengers traveling annually, IndiGo dominates this sector, offering high-frequency flights to meet the demand. The short duration and frequent departures make it a popular choice for business travelers, many of whom travel for day trips or meetings. As both cities continue to thrive, this route is expected to remain a core part of IndiGo’s operations.

6. Delhi-Kolkata

Serving about 1 million passengers annually, the Delhi-Kolkata route is another key segment for IndiGo. With 11 daily flights operating between the two cities, this 2-hour journey connects the capital with one of India’s cultural and economic hubs. IndiGo’s strong presence on this route ensures that passengers have frequent travel options, especially during peak travel periods like Durga Puja when demand spikes.

7. Bengaluru-Kolkata

The Bengaluru-Kolkata route, spanning 2.5 hours, serves approximately 800,000 passengers annually. IndiGo operates 10 flights per day, making it one of the airline’s most important routes. The connection between Bengaluru’s booming tech scene and Kolkata’s expanding commercial landscape ensures this route’s continued relevance in IndiGo’s network, allowing the airline to cater to both business and leisure travelers.

8. Delhi-Chennai

The Delhi-Chennai route is another essential link, carrying around 800,000 passengers each year. IndiGo offers 10 daily flights on this 2.5-hour route, connecting India’s northern capital with one of the key metros in the south. With a mix of business, tourist, and family travelers, this route remains crucial for IndiGo, as it offers frequent and reliable travel options for people traveling between these two major cities.

9. Chennai-Hyderabad

Chennai-Hyderabad is a fast-growing route for IndiGo, connecting two major cities in South India. This 1-hour flight sees about 600,000 passengers annually, with IndiGo operating 10 flights per day. As both cities play significant roles in India’s industrial and tech sectors, the demand for frequent and efficient travel between them continues to rise. IndiGo’s market share in both cities is strong, making this route one of the airline’s most reliable.

10. Mumbai-Hyderabad

Rounding out the top 10, the Mumbai-Hyderabad route serves around 600,000 passengers annually. This 1-hour flight, operated 10 times a day, provides essential connectivity between these two key business hubs. Despite the occasional congestion at Mumbai’s airport, IndiGo’s punctuality and operational efficiency make it a top choice for travelers, particularly those needing to attend meetings or conferences.

The Significance of These Routes

IndiGo’s top 10 domestic routes represent the backbone of its operations, with the Delhi-Mumbai-Bengaluru triangle driving significant business and tech-related travel. The airline’s strong presence in cities like Hyderabad, Chennai, and Kolkata further strengthens its position in India’s highly competitive aviation market. By offering high-frequency flights, competitive pricing, and modern aircraft, IndiGo continues to dominate the domestic air travel sector.

As the airline prepares for future growth with new airport openings and infrastructure upgrades, IndiGo’s already extensive network is poised to expand further. With its focus on operational efficiency and customer satisfaction, IndiGo remains the airline of choice for millions of passengers across India, continuing to play a pivotal role in the country’s air travel landscape.