The mass flight cancellations by IndiGo, India’s largest airline, in early December 2025, sparked a major operational crisis that paralyzed air travel across the country, with over 2,000 flights cancelled in the first week.
The primary cause of this unprecedented disruption was the airline’s lack of preparedness for the full implementation of the Directorate General of Civil Aviation’s (DGCA) revised Flight Duty Time Limitations (FDTL) rules, which came into effect on November 1, 2025.
These new norms, designed to combat pilot fatigue and enhance safety, significantly increased the mandatory weekly rest period from 36 to 48 hours and drastically cut permitted night landings from six to two per week.
IndiGo’s business model, which relies on a highly efficient, high-frequency schedule and a “lean-staffing” approach with minimal crew buffer, was immediately thrown into disarray by the stricter FDTL requirements.
The airline was unable to staff its large number of night and early-morning flights, leading to a domino effect of delays and subsequent cancellations, which worsened during the peak winter travel season.
Airports like Delhi and Bengaluru were the worst hit, witnessing over a hundred cancellations each day. The crisis resulted in widespread chaos, stranded thousands of passengers, and led to a sharp collapse in IndiGo’s On-Time Performance (OTP).
The government was forced to intervene, with the Civil Aviation Ministry ordering a high-level inquiry and imposing airfare caps to control the surge in ticket prices caused by the capacity reduction.
In a swift response to the crisis, the DGCA granted IndiGo a temporary, partial exemption from some of the stricter FDTL provisions until February 10, 2026, to allow the airline to stabilize its network.
IndiGo’s CEO, Pieter Elbers, issued a public apology, acknowledging “misjudgment and planning gaps,” and the airline focused its efforts on processing over ₹610 crore in refunds and working to normalize its flight schedules, with an expectation of full recovery by mid-December.
The entire episode highlighted the fragility of high-utilization operating models and the serious implications of failing to adhere to mandatory safety regulations.
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