India’s largest carrier reported a quarterly profit of 1.88 billion Indian rupees ($22.59 million), compared to a loss of 15.85 billion rupees.
The July-September quarter is usually weak for Indian carriers with fewer flyers and lower fares, according to analysts.
Still, IndiGo has benefited from troubles at smaller rivals Go First and SpiceJet.
IndiGo flew 23.3 million passengers, 33% higher than a year earlier and marginally lower than the previous quarter, as per data from the Directorate General of Civil Aviation, India’s aviation watchdog.
Interglobe’s revenue rose about 20% to 149.44 billion rupees, while quarterly expenses increased 6%.
Passenger load factor, or the passenger carrying capacity being utilised, improved by 4.1 percentage points to 83.3%.