India’s domestic air passenger traffic dropped to 11.8 million in September, a 6.5% year-on-year decline. IndiGo increased its market share to 65.4%, while SpiceJet’s share dropped to 0.6% amid severe operational issues. The data highlights a growing divergence in operational efficiency and reliability between the market leader and smaller, struggling carriers.
The Indian aviation sector saw a contraction in domestic passenger traffic during September, with total volume falling to 11.8 million passengers. This represents a 6.5% decline compared to the same period last year. Data released by the Directorate General of Civil Aviation indicates that the sector is currently navigating significant operational constraints, which are affecting flight schedules and overall capacity utilization.
A key trend emerging from the latest data is the growing market concentration. IndiGo, the largest carrier in the country, further solidified its position by increasing its market share to 65.4% in September, up from 65% in August. In contrast, SpiceJet experienced a substantial decline, with its market share falling to 0.6% from 1.2% the previous month. Other players saw mixed results, with Air India reporting a slight increase in share to 26.8%, and Akasa Air growing its share to 5.6%. Alliance Air and other boutique operators maintained smaller footprints in the market.
Operational reliability continues to be the most critical differentiator for airlines. The data reveals a wide gap in performance metrics among carriers. IndiGo reported an On Time Performance (OTP) rate of 91.1% across ten major airports, while Akasa Air maintained a competitive 90.8%. Conversely, SpiceJet struggled with operational consistency, recording an OTP rate of only 16.6%. This operational friction is a significant factor in the divergence of market share, as passengers increasingly favor carriers with higher reliability.
These operational challenges have direct financial consequences for the airlines involved. During September, service failures led to significant compensation payouts. Airlines paid approximately ₹2.86 crore to passengers affected by flight delays, and an additional ₹42.79 lakh to those impacted by flight cancellations. With roughly 1.19% of all domestic flights delayed by more than two hours, these costs highlight the ongoing infrastructure and resource pressures within the domestic network.
For investors, the contrast between carriers that maintain high operational reliability and those facing service issues is vital. Airlines with strong on-time performance often secure higher customer loyalty and, in many cases, better pricing power, as travelers—particularly business flyers—prioritize punctuality. This reliability contributes to more predictable revenue streams. Conversely, frequent service failures create unnecessary operational costs through compensation payouts and can attract increased scrutiny from regulators. Looking ahead, investors may track whether carriers with smaller market shares can improve their operational stability or if the trend of consolidation toward larger, more efficient players will persist. Furthermore, monitoring the broader traffic trends and how compensation expenses impact short-term profitability will provide deeper insight into the sector's financial health.