Indian Airlines Cut September Flights by 4.5%: What Travellers Need to Know

India’s airline capacity is shrinking in September 2026 as carriers adjust flight schedules amid higher operating costs, limited aircraft availability and slower passenger growth. According to aviation analytics firm OAG, airlines operating from India are scheduled to offer 22.7 million seats in September, down 4.5% compared with September 2025.

The reduction is more noticeable on domestic routes, where capacity has fallen by 5.6% year-on-year to around 15 million seats. International capacity is down a smaller 2.1% to about 7.7 million seats.

For travellers, this does not mean flights are being cut everywhere. Airlines are instead moving aircraft towards routes with stronger demand while reducing capacity on some weaker or less profitable routes.

India Flight Capacity Falls 4.5% in September

OAG's September 2026 data shows that India's total scheduled airline capacity has dropped from approximately 23.8 million seats in September 2025 to 22.7 million seats this year.

Domestic flights account for about 66% of the country's total scheduled capacity, while international services account for the remaining 34%.

The reduction comes as airlines deal with several challenges, including higher aviation turbine fuel costs, aircraft availability constraints and geopolitical disruptions affecting international network planning.
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Domestic Flights See the Bigger Reduction

Domestic airline capacity has fallen faster than international capacity.

• Domestic capacity: 15 million seats, down 5.6%

• International capacity: 7.7 million seats, down 2.1%

• Total capacity: 22.7 million seats, down 4.5%

• Low-cost carriers: 15.7 million seats, around 69% of total capacity

The figures show that airlines are becoming more selective about where they deploy aircraft rather than making uniform cuts across the country.

IndiGo and Air India Also Reduce Capacity

IndiGo continues to dominate India's aviation market, accounting for roughly 50% of scheduled capacity in September with about 11.26 million seats. Its capacity is down around 4.5% from the same month last year.

Air India is the second-largest carrier by scheduled capacity, with about 3.22 million seats, but its capacity has fallen 8.8% year-on-year.

Air India Express has also reduced capacity by about 2.6%. Meanwhile, SpiceJet has recorded one of the steepest reductions, with capacity down 45.2% compared with September 2025.

Akasa Air is one of the exceptions, with its September capacity increasing by about 5% year-on-year.

Not All Routes Are Seeing Flight Cuts

One of the most important points for travellers is that the 4.5% national decline does not mean every route has fewer flights.

Airlines are reallocating capacity towards routes where demand remains strong.

The Mumbai–Delhi route, India's busiest domestic air route, has about 677,300 seats scheduled in September, an increase of 13.9% from last year.

The Bengaluru–Pune route has seen even stronger growth, with capacity increasing by 26.8% to around 212,000 seats.

Bengaluru–Delhi capacity is also up 2.7%, while Delhi–Pune capacity has increased by 5.7%.

Some Major Routes Have Fewer Seats

At the same time, several important city pairs have experienced capacity reductions.

OAG data shows:

• Mumbai–Hyderabad: down 9.5%

• Mumbai–Chennai: down 8.5%

• Ahmedabad–Delhi: down 5.7%

This means travellers on certain routes may have fewer departure options even though other routes are seeing additional seats.

What Does This Mean for Airfares?

A reduction in capacity can put upward pressure on fares when demand remains strong and fewer seats are available. However, the 4.5% national capacity decline does not automatically mean ticket prices will rise across India.

The impact will depend on the individual route, airline competition, demand and how many flights remain available.

For example, a passenger travelling between Mumbai and Delhi may have plenty of options because airlines have increased capacity on that route. A traveller on a route where several airlines have reduced seats could have fewer choices and potentially face higher prices during busy periods.

Travellers Should Book Popular Routes Earlier

Passengers travelling during weekends, holidays or other high-demand periods should consider booking flights earlier, particularly when travelling on routes where capacity has fallen.

It is also worth comparing different airlines and departure times rather than checking only one carrier.

Travellers can also consider:

• Checking nearby airports where practical

• Comparing morning, afternoon and evening departures

• Booking return flights together when prices are favourable

• Checking alternative connecting routes

• Avoiding last-minute bookings during peak travel periods

Delhi and Pune Are Seeing Capacity Growth

Despite the broader decline, some airports are bucking the national trend.

Delhi remains India's busiest airport by scheduled capacity, with around 2.71 million domestic seats in September, up 5.9% year-on-year.

Pune has also recorded growth, with approximately 560,000 seats, an increase of 9.4%.

In contrast, several major airports have recorded substantial reductions. Bengaluru's capacity is down 8.3%, Hyderabad's is down 14.7%, Chennai's is down 13.4% and Kolkata's is down 19%.

International Flight Capacity Also Falls

International airline capacity from India has declined by a more modest 2.1%.

The UAE remains India's largest international market, although capacity has fallen by around 5%. Saudi Arabia is moving in the opposite direction, with capacity increasing by 12%.

Thailand has seen a much larger 23% decline, while Malaysia and Singapore are down 13% and 12%, respectively. Capacity to the UK, meanwhile, has increased by 16%.

Mumbai–Dubai remains the busiest international route from India, with around 205,000 seats scheduled in September. Mumbai–London Heathrow has recorded a 14% increase in capacity.

Why Are Indian Airlines Reducing Capacity?

The latest capacity changes reflect a combination of factors.

Higher fuel costs: Aviation turbine fuel remains a major expense for airlines, making route profitability more important.

Aircraft availability: Airlines are also dealing with limitations in aircraft availability, making it harder to maintain or expand schedules across every route.

Slower passenger growth: After a period of strong expansion, passenger traffic growth has moderated, encouraging airlines to be more selective with capacity.

Geopolitical disruption: International airspace disruptions have also affected airline network planning and operations.

What Travellers Should Expect

The September numbers point towards a more selective Indian aviation market rather than a blanket reduction in flights.

Airlines are concentrating available aircraft on routes with stronger demand and commercial potential, while reducing frequencies on some other routes.

For passengers, the biggest takeaway is simple: check your specific route rather than relying on the national capacity figure.

If your route has gained capacity, you may continue to have plenty of flight choices. If your route has lost capacity, booking earlier and comparing airlines could become more important.

Final Takeaway

India's scheduled airline capacity is down 4.5% in September 2026, with domestic capacity experiencing a larger 5.6% decline. But the reduction is not uniform across the country's aviation network.

Airlines such as IndiGo and Air India have reduced overall capacity, while Akasa Air has expanded. At the route level, Mumbai–Delhi and Bengaluru–Pune are seeing significant growth, while routes such as Mumbai–Hyderabad and Mumbai–Chennai have fewer seats.

For travellers, the best strategy is to check flight availability early, compare airlines and watch capacity on your particular route, especially if travelling during a busy period.