Cirium describes an inversion that would have looked like a spreadsheet error two years ago. On India’s 20 busiest domestic routes in June 2026, average economy base fares, the ticket paid to the airline, before tax, rose year on year on 18 routes. On 17 of those, the jump was the steepest in the three-year window since fare caps ended in August 2022. Eleven routes were up more than 15 percent. Five were up more than 30 percent. Mumbai-Bengaluru economy, which had fallen 15.1 percent in June 2024 and 1.3 percent in June 2025, jumped 38.8 percent. Delhi-Srinagar economy rose 85.1 percent. Delhi-Leh 50.4 percent. Bengaluru-Chennai 34.9 percent. Business class on the same list moved the other way, it became cheaper on 16 of 20 routes by June, after already falling on 19 of 20 in February. Bengaluru-Chennai business dropped 49.3 percent. Delhi-Srinagar business dropped 20.1 percent. The middle of the cabin is not 'the market'. It is two markets that have stopped rhyming.
Yielding explains the economy side first. Domestic capacity in 2026 is tight relative to people who cannot skip the trips like weddings, court dates, medical travel, rostered work, the festival bank now arriving with fewer seats. Cirium’s own September schedule file, cited separately, put domestic seats about 5.3 percent below last year. When the last cheap bucket empties, the algorithm does not invent a sale. It asks what the next passenger will pay. That passenger is often not comparing a business fare. They are comparing a train, a no, or a later day that does not exist. Fuel rose later in the year and jet fuel was reported up more than 20 percent from February to September, but economy had already climbed on 19 of 20 big routes in February. Scarcity came before the fuel spike. The cap that died in 2022 is not coming back to rescue the back cabin.
The front cabin is a different customer and a different supply. IndiGo Stretch, in the market since November 2024 and now on about ten domestic routes, put a priced-down premium product against Air India’s lie-flat and the older recliner. Air India added premium seats on trunks. Business fares fell even on some city pairs where Stretch does not fly, which means the discount is broader than one product: corporate travel managers have more cabins to play and less patience after two years of expensive tickets. A company can wait a day or take economy-plus. A family flying to a wedding cannot. So the airline protects the load factor up front with a cheaper J fare and extracts the scarcity rent from Y. That is not kindness to the suit. It is inventory.
The counterintuitive result is a narrower gap between cabins on some routes than a passenger’s memory of 'business should cost three times economy'. On Bengaluru-Chennai the two products moved so far in opposite directions that the upgrade starts to look like a rounding error rather than a class. That will not last if economy keeps rising and corporations come back in volume. It will last as long as domestic seats stay short and premium metal stays long.
What the Cirium file does not say is who is profitable. Higher Y yield on a full 737 is the classic Indian LCC model. Cheaper J on a half-full premium cabin can still lose money per seat. September’s festival fares, already 12-20 percent above last year on OTAs, sit on top of the June pattern. The passenger in 32A is funding the sale in 2A. Until capacity returns, that is the deal.