India Flight Capacity Falls 4.5% in September 2026: What Travellers Need to Know

India's aviation market is seeing a noticeable reduction in scheduled flight capacity this September, with airlines offering fewer seats compared with the same month last year.

According to the latest data from aviation analytics firm OAG, India has around 22.7 million scheduled airline seats in September 2026, down 4.5% from 23.8 million seats in September 2025. The decline comes as airlines adjust their schedules amid changing market conditions and continued pressure on the aviation industry.

For travellers, the reduction could mean changes in flight availability, schedules and competition on some routes, particularly at airports where capacity has fallen sharply.

India Flight Capacity Down 4.5%

Of the 22.7 million scheduled seats available this month, around 66% are domestic seats, while international services account for the remaining 34%.

Domestic capacity has declined by 5.6% year-on-year, while international capacity is down 2.1%. Low-cost airlines continue to dominate India's aviation market, accounting for around 69% of total capacity with 15.7 million seats.

The reduction is significant because September is an important month for airlines as they prepare for the upcoming festive and holiday travel period.

Which Indian Airports Are Seeing the Biggest Changes?

Not every airport is experiencing a decline.

Delhi remains India's busiest airport, with around 2.71 million domestic seats in September, up nearly 6% from the same period last year.

Mumbai is second with approximately 1.72 million domestic seats, while Bengaluru ranks third with around 1.55 million seats. However, both airports have recorded declines compared with September 2025.

Among the major airports, Kolkata and Hyderabad have recorded some of the sharpest declines, while Delhi and Pune are among the airports adding capacity.

IndiGo and Air India Also Cut Capacity

India's two largest airline groups have also reduced their scheduled capacity.

IndiGo remains the country's largest airline, with around 11.26 million seats and roughly half of India's total market capacity. Its September capacity is down about 4.5% compared with last year.

Air India follows with around 3.22 million seats, but its capacity is down 8.8% year-on-year. Air India Express has also reduced capacity by 2.6%.

SpiceJet has recorded the steepest reduction among the major airlines, with capacity falling by approximately 45.2% compared with September 2025.

Meanwhile, Akasa Air is moving in the opposite direction, with capacity increasing by around 5%. Emirates has also recorded a small increase.
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What Is Behind the Decline?

The aviation industry has been dealing with several pressures, including higher operating costs and geopolitical uncertainty.

Recent industry reporting has linked the September capacity reduction to factors including higher aviation turbine fuel costs and geopolitical disruptions, which have affected airline operations and international travel patterns.

Airlines can respond to these pressures by adjusting frequencies, changing aircraft deployment or temporarily reducing capacity on weaker routes.

That does not mean every flight will become more expensive. However, fewer seats on particular routes can reduce the number of options available to passengers and may put upward pressure on fares when demand is strong.

What Does This Mean for Travellers?

For passengers, the impact will depend heavily on the route and airport.

1. Book Popular Routes Earlier

Travellers flying on busy routes should consider booking earlier, particularly around weekends, holidays and the upcoming festive season.

Less overall capacity does not automatically mean higher fares, but limited seats can become expensive quickly when demand increases.

2. Compare Multiple Airlines

With airlines making different schedule adjustments, it is worth comparing multiple carriers rather than automatically choosing the airline you normally fly.

Akasa Air, for example, is one of the few major carriers currently showing year-on-year capacity growth.

3. Check Flight Schedules Before Travelling

A reduction in capacity can mean fewer daily frequencies on certain routes.

Passengers should check their flight schedule closer to departure, particularly if they have connecting flights or important appointments at their destination.

4. Consider Alternative Airports

Travellers in cities with multiple nearby airports or strong rail connections may want to compare alternative departure options.

For example, passengers travelling between major metropolitan areas can compare schedules from different airports when direct flights are limited.

Bengaluru-Mumbai-Delhi Routes Remain Busy

Despite the overall decline, several major domestic routes continue to have strong capacity.

Mumbai–Delhi remains India's busiest domestic route, with approximately 677,300 seats scheduled in September 2026, up nearly 14% from last year.

Bengaluru–Delhi is the second-busiest route with around 446,300 seats, while Bengaluru–Mumbai has approximately 364,500 seats.

Interestingly, Bengaluru–Pune has recorded one of the strongest increases among the major routes, with capacity up nearly 27% year-on-year.

International Travel Capacity Also Falls

The reduction isn't limited to domestic aviation.

International capacity from India is down 2.1% year-on-year in September 2026.

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

Capacity to Thailand has fallen by around 23%, while services to Malaysia and Singapore have also declined.

At the same time, flights to the UK have increased by around 16%, showing that the capacity changes are not uniform across international markets.

Should Travellers Be Worried?

Not necessarily.

A 4.5% decline in national seat capacity does not mean flights are being cancelled across India or that passengers will automatically face higher fares.

Instead, it indicates that airlines have reduced the number of seats they have scheduled compared with September 2025.

The impact will vary by route. Some routes are actually seeing more capacity, while others have experienced significant reductions.

For travellers, the main takeaway is simple: check schedules, compare airlines and avoid leaving popular flights until the last minute, especially during periods of high demand.

The Bigger Picture for Indian Aviation

India's aviation market continues to expand over the long term, but the September figures show that airlines are currently adjusting capacity rather than increasing it across the board.

At the same time, regional aviation is preparing for further expansion. Regional carrier FLY91 recently placed an order for 40 ATR 72-600 aircraft, worth around $1 billion at list prices, with deliveries planned from 2027. The airline plans to use the aircraft to expand connectivity to smaller Indian cities.

This suggests that while capacity may be tightening on some established routes today, India's broader aviation network could continue expanding in the coming years.

Final Takeaway

India's scheduled airline capacity has fallen 4.5% year-on-year to 22.7 million seats in September 2026, with domestic capacity down 5.6% and international capacity down 2.1%.

For travellers, the change is most important on routes and at airports where capacity has dropped sharply.

If you're planning a trip during the upcoming festive and holiday season, booking early, checking multiple airlines and monitoring flight schedules could help you find better options.

India's aviation market remains highly active — but for now, airlines appear to be taking a more cautious approach to capacity.