On a Tuesday morning in early March 2026, something happened in a narrow stretch of water between Iran and Oman that would, within weeks, push an IndiGo passenger flying Delhi to Mumbai to pay ₹10,000 more for their ticket. It would ground 250 daily flights across India. It would nearly bankrupt two of the country's busiest airlines. And it would finally force the Indian government to do something it had been resisting for two decades.
The Strait of Hormuz — a 33-kilometre-wide chokepoint through which one-fifth of the world's oil normally flows — was effectively shut. US-Israeli strikes on Iran had triggered a cascade that no airline finance team anywhere in the world had modelled. In 78 days, India's aviation sector lost more than it had gained in three years of post-COVID recovery.
The Shock That Arrived in 78 Days
Crude oil surged 64% in March 2026 alone following the Hormuz closure, the largest single-month spike since the Gulf War. For Indian carriers, the number that matters is not crude but ATF, Aviation Turbine Fuel, the refined kerosene-based fuel that powers every commercial aircraft flying Indian skies.
On March 1, 2026, ATF in Delhi cost approximately ₹60 per litre. By May, it had climbed to ₹142 per litre. At Delhi's airport one of the five busiest in Asia the per-kilolitre price hit ₹2.07 lakh, a number that had never been seen before.
For an IndiGo Airbus A320neo, a typical Delhi–Mumbai sector burns approximately 4,500–5,000 litres of fuel. At ₹60/litre, that's ₹2.7–3 lakh in fuel cost per flight. At ₹142/litre, that same fuel bill became ₹6.4–7.1 lakh — more than double, on a route where the average ticket sold for under ₹6,000.
ATF already accounts for nearly 40% of an airline's operating costs in India under normal conditions. At ₹142/litre, it was consuming over 60–70% of revenues on domestic short-haul sectors.
Internationally, the pain was equally acute. Jet fuel on global spot markets surged from $85–90 per barrel to $150–200 per barrel. United Airlines CEO Scott Kirby warned at the IATA AGM in Rio that sustained prices at these levels would add $11 billion in annual costs to the global airline industry. India's carriers, already operating on thinner margins than their Western counterparts, faced an existential reckoning.
What Airlines Actually Did: 250 Flights Vanish
The retreat from India's skies happened in two waves.
Wave One — May 26, 2026: IndiGo, Air India, and Air India Express announced sweeping flight cuts. Air India planned reductions of up to 22% of domestic operations and 27% of international flights. IndiGo cut domestic capacity by 12–13% and international by 17%. Combined, Air India, IndiGo, and Air India Express removed approximately 250 daily domestic flights from the schedule — a number DGCA described as a "temporary industry-wide slowdown."
Wave Two — June 9, 2026: IndiGo formally announced the suspension of six international routes, effective July 1–September 30, 2026:
Route Suspension Date Suspension Until Delhi/Mumbai – Langkawi July 1 September 30 Delhi/Mumbai – Krabi July 1 September 30 Delhi/Mumbai – Ho Chi Minh City July 1 September 30 Delhi/Mumbai – Hong Kong July 1 September 30 Delhi/Mumbai – Shanghai July 1 September 30 Delhi/Mumbai – Siem Reap July 3 September 30
IndiGo framed this as "retaining 1,800+ weekly flights"--technically true, but the airline that had defined India's budget aviation expansion was retreating from a region it had spent five years building.
Air India's international network rationalisation was equally significant. Delhi–Chicago cut. Delhi–San Francisco reduced from 10x to 7x weekly. Delhi–Toronto halved from 10x to 5x. Kathmandu slashed from 42x to 21x weekly. These are not marginal routes — they are lifelines for the Indian diaspora, for business travel, for tourism inbound.
The Hidden Rerouting Tax
Beyond raw fuel prices, India's carriers face a second, invisible cost that most coverage has missed entirely.
Pakistan's airspace ban — in place since Operation Sindoor — combined with Gulf airspace restrictions has forced significant detours on India's most profitable international corridors. Flights from Delhi or Mumbai to London, Paris, and New York that previously transited Pakistan and the Gulf are now rerouting either north (over Central Asia, adding 60–90 minutes) or south (over the Arabian Sea, adding time and fuel).
The economics are brutal. A widebody Airbus A350 or Boeing 787 burns approximately 3,000–4,000 litres of fuel per hour at cruise altitude. One additional hour of flight at ₹115/litre (the subsidised rate, discussed below) costs ₹3.45–4.6 lakh per aircraft, per flight.
Oxford Economics calculated that this rerouting + fuel shock combination would push airfares on Europe-Asia corridors up 5–10% over 2026 — and that was before airline surcharges. IndiGo's fuel surcharge schedule, introduced from March 14, told the story more plainly:
Domestic India: ₹425 per booking
Indian Subcontinent: ₹425 per booking
Middle East: ₹900 per booking
Southeast Asia & China: ₹1,800 per booking
Europe: ₹2,300 per booking
United Kingdom: ₹10,000 per booking
A passenger booking Delhi–London effectively absorbed a hidden 15–20% price increase before any base fare change.
The ₹10,000 Crore Fix — And What It Actually Does
On June 3, 2026, the Union Cabinet approved ₹10,000 crore ($1.05 billion) as a one-time interest-free advance to state-owned Oil Marketing Companies (OMCs) — Indian Oil, HPCL, and BPCL — to cap ATF prices for Indian carriers.
The mechanism requires careful explanation, because most coverage has oversimplified it.
This is not a subsidy to airlines. The government gives OMCs interest-free capital to absorb losses when the international ATF spot price exceeds a government-set benchmark. Airlines that opt into the scheme purchase ATF from OMCs at a fixed rate of ₹115 per litre — meaningfully below the crisis price of ₹142, but still 90% above the pre-crisis level of ₹60.
The catch is structurally interesting: if global prices fall below ₹115, opted-in airlines continue to pay ₹115 until the OMC recoups the advance. It functions as price insurance — certainty in exchange for upside participation. Airlines get predictability. The government hopes that oil prices normalise and the fund is returned.
The government justified the intervention in explicit job-protection terms. Civil Aviation Minister Kinjarapu Ram Mohan Naidu framed the ₹10,000 crore as protecting 77 lakh (7.7 million) jobs across the aviation ecosystem — airlines, airports, ground handling, travel agencies, cargo operators, maintenance firms, and the broader hospitality and tourism sector.
The scheme became operational on June 10, 2026 — 78 days after the Hormuz closure first disrupted global supply chains. By that point, the total cost to the Indian government in fuel-related interventions — price freezes in April and May plus the new fund — had crossed $13 billion in cumulative economic exposure.