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IndiGo cancelled thousands of flights. This is what 64% market share looks like when it breaks

Dec 10, 2025  ·  5 min read
A row of airliners parked at an airport
TheMarketDigestBusiness / Aviation
Grounded.
64% of the sky.

New pilot rest rules exposed a staffing gap at India’s largest airline. Over two thousand cancellations in a week stranded passengers nationwide, and showed the cost of an industry with very few players.

In the first week of December, IndiGo cancelled more than two thousand flights. Airports filled with stranded passengers, fares on the remaining seats jumped, and the civil aviation ministry stepped in with temporary caps on economy fares. One airline’s rostering problem became a national travel crisis, and the reason is a number: IndiGo carries roughly 64% of India’s domestic air passengers.

What went wrong

The aviation regulator, the DGCA, had introduced new flight duty time limits to reduce pilot fatigue, including longer weekly rest and tighter limits on night flying. Airlines had known the rules were coming for months. IndiGo, which runs one of the most tightly scheduled operations in the world, did not have enough pilots to staff its full timetable under the new limits. When the second phase took effect, the gap turned into cancellations, and the cancellations cascaded across the network.

Why it spread so far

In a market with many airlines, stranded passengers rebook on a competitor. India’s skies no longer work that way. After Jet Airways and Go First collapsed, domestic aviation became close to a duopoly, with IndiGo and the Air India group together carrying around 90% of passengers. Air India had few spare aircraft or crew to absorb IndiGo’s cancelled flyers, so empty seats simply did not exist, and the seats that did exist were priced accordingly.

Efficiency and resilience pull in opposite directions. A system with no slack runs beautifully until the day it doesn’t.

The lesson

IndiGo became dominant by being cheaper and more punctual than its rivals, which is good for travellers. The same efficiency left no slack. The government granted temporary exemptions from the new rules and ordered the airline to trim its winter schedule, and IndiGo’s operations recovered within days. The longer debate is about competition. When one company is this large, its operational mistakes become everyone’s problem, and regulators have to weigh the benefits of scale against the risk of having so few alternatives.

Sources: DGCA orders on flight duty time limitations; Ministry of Civil Aviation statements, December 2025.

The Short Version
  • IndiGo carries about 64% of India’s domestic air passengers.
  • New flight duty rules, which give pilots more rest, exposed a shortage of crew.
  • More than two thousand flights were cancelled in a single week in early December.
  • With IndiGo and the Air India group controlling about 90% of the market, there was little spare capacity to absorb the shock.
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