IndiGo retains 50%+ of September capacity despite 4.5% year-on-year cut

OAG data puts IndiGo at 11.3 million September seats and more than half of India’s airline capacity. Air India held 14% with 3.2 million seats, while Akasa Air was the only Indian carrier to expand capacity. Mumbai–Delhi remained the busiest domestic route.

— Source publishedThu, 17 Sept, 2026, 14:18 IST·First seen Thu, 17 Sept, 2026, 14:22 IST·Source Mint

What happened

OAG data shows IndiGo retaining more than half of Indian airline capacity despite a September decline. Air India remained second, while Akasa was the only

Key facts

  • IndiGo: 11.3 million September seats; over 50% market share; capacity down 4.5% (525,600 seats)
  • Air India: 3.2 million seats; 14% share; capacity down 8.8% (309,000 seats)
  • Air India Express capacity down 2.6%
  • SpiceJet capacity down 45.2% (215,000 seats)
  • Akasa Air capacity up 5%
  • Low-cost carriers: 15.7 million seats, 69% of capacity, down 4%
  • Full-service carriers: 7 million seats, down 5.4%
  • Mumbai-Delhi route: 677,300 seats
  • Delhi domestic capacity: 2.7 million seats; Mumbai: 1.7 million; Bengaluru: 1.5 million
  • UAE international capacity: 1.1 million seats, down 5%

Why this matters

With SpiceJet’s capacity down 45.2% and Akasa the only domestic carrier expanding, IndiGo should watch for route-rights, aircraft and partnership opportunities created by industry dislocation.