NEW DELHI: India’s civil aviation watchdog imposed a fine of 2.45 million U.S. dollars on IndiGo airline for its mass flight cancellations last month, officials said Sunday.

The large-scale delays and cancellations took place between Dec. 3 and Dec. 5, 2025, during which IndiGo cancelled 2,507 flights and 1,852 saw delays. These factors left over 300,000 passengers stranded in airports across India.

IndiGo, India’s largest airline, has a fleet of over 400 aircraft, and used to operate around 2300 flights daily from over 90 domestic airports and 40 international airports.