IndiGo, India’s largest carrier, has closed July with a domestic market share of 67.4%, the highest ever by the airline and beating its previous best of 66.3% which it recorded in the previous month of June 2026. The airline carried 80.8 lakh (8,081,825) passengers out of the 1.20 crore (11,999,411) who flew domestically in the month, meaning better than two out of every three domestic travellers in India boarded a 6E aircraft in July. This comes at a time when both IndiGo and Air India group have significantly curtailed capacity in both domestic and international markets.

Overall domestic traffic was down 4.8% year-on-year in July compared to last year. While service reductions are normal in off-peak seasons, generally the drop is sequential and generally holds up slightly above the same month previous year. The July drop is worrisome because last July was an immediate aftermath of the AI171 crash and a drop this year below the 2025 levels is an indicator of things not being very well.

However, the drop is not the same across carriers. Passenger numbers at Air India were down 16.9%, while those at Air India Express fell 9.4%. Akasa Air’s drop was more in line with the average drop at 4.7%, while SpiceJet saw almost a quarter of its market disappear with a drop of 23.94%. Amidst this, IndiGo saw a drop of 1.63% thus translating into a higher market share, which is an outcome of the capacity deployed. Akasa Air continued to top the load factors with 91.9% load factor in July.

At the end of first seven months of the year, the domestic aviation has seen a drop of 2.27% by departures while passenger traffic remained flat at 0.6% over the same period of 2025.

How IndiGo got here

IndiGo’s climb past the 60% mark is a fairly recent phenomenon. The airline first crossed 60% domestic share back in July 2020, a pandemic-distorted month that isn’t really comparable to anything. Its next big jump came in May 2023, when Go First’s collapse handed IndiGo a record 61.4% share almost overnight, as the failed airline’s slots and passengers had nowhere else large enough to go. For a while after that, IndiGo’s share hovered in the mid-to-high 50s and low 60s, growing steadily but without another single catalytic event.

That changed through 2026. Air India Group’s capacity cuts, driven by cost pressures and operational disruptions across its network, opened the door for IndiGo to expand aggressively even as the Tata-owned group’s combined share slid from a peak of 27% earlier in the year down into the low 20s. Air India group closed July 2026 with a domestic market share of 24%. IndiGo’s share climbed from the mid-60s in the first half of 2026 to 66.3% in June and now 67.4% in July, two consecutive record months in a row. This isn’t a one-off spike like Go First’s exit was; it’s a sustained, multi-month consolidation built on a rival pulling back rather than IndiGo simply flooding the market.

Break the July numbers down by carrier and the picture sharpens considerably. IndiGo’s own traffic fell just 1.63% year-on-year, the smallest drop of any major carrier, while the overall market fell 4.8%. That gap alone explains most of the market share gain. Air India lost nearly 3 lakh passengers, a 15.93% fall that pushed its estimated share down by roughly 1.7 percentage points to about 13.1%, continuing the capacity-cut story that has defined the Air India Group’s 2026 so far. Air India Express fared somewhat better in percentage terms, down 9.40%, with its estimated share slipping to around 10.85% from about 11.4% a year ago.

Akasa Air is the one carrier whose share barely moved, its 4.72% traffic decline tracking close enough to the overall market’s own contraction that its estimated share sits flat at around 5.5%. That’s arguably the most interesting data point in the table: Akasa isn’t gaining share aggressively right now, but it also isn’t bleeding it, which suggests a carrier finding a stable footing rather than one riding a single tailwind.

SpiceJet is the real outlier, and not in a good way. A 23.94% year-on-year drop in passengers carried is by far the steepest decline in the table, nearly five times the pace at which the overall market contracted. SpiceJet’s domestic market share is now down to just 1.5%.

On Time Performance

IndiGo has left the December fiasco behind with the On Time Performance continuing at high percentage. IndiGo had the best OTP recorded at the top 10 airports which stood at 91.2%. The lowest OTP was recorded by SpiceJet at 34.6%. Air India group recorded 88.5% OTP, while Akasa Air recorded 90?8%. Amongst the cities, Chennai continued to remain on top with OTP of 96.7% in July, while the lowest was recorded by Guwahati at 77.9%.

Network Thoughts

The story of Indian domestic aviation in 2026 isn’t really “IndiGo is winning,” it’s “IndiGo is simply not losing while everyone around it is.” A 1.63% traffic decline in a market down 4.8% overall is not spectacular growth by IndiGo’s own historical standards; it’s stability, and stability alone is enough to set records when your competitors are contracting many times faster. That distinction matters for how sustainable this 67.3% share actually is. If Air India genuinely restores capacity from September as it has indicated, some of IndiGo’s gain could mechanically reverse without IndiGo doing anything differently at all.

While market share redistribution is inevitable, the redistribution has flowed almost entirely to IndiGo. The question then is, was this profitable? We will have to wait for a few months to know that, but the general trend in the market is of higher fares, one driven by capacity cuts done by the carriers and focus on RASK. If I am reading the market correctly, IndiGo is focusing on having a higher yield and RASK numbers this quarter, even if it means losing some loads. In a quarter which is not driven by tourism, the passenger who has to travel will pay anyways and hence it might be making sense to fly some empty seats but push up the RASK. We will know about how this went in October when the Q2 results are declared.

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