Excluding fuel cost, IndiGo’s expense of operating one seat for one kilometre (CASK) is Rs 1.79, while the same for its low-cost rival SpiceJet is Rs 2.33. Among global LCC majors, American airline Southwest burns Rs 3.52, while Ryanair in Europe spends Rs 1.45.
In its DRHP, IndiGo highlighted that operating long-haul routes could be a challenge as the airline has, till now, operated a single-class configuration in short-haul routes. “While we operate short-haul international flights to seven destinations, the majority of our existing operations are focused within India, and we have less experience operating in international sectors. Future international expansion initiatives that we may undertake would involve risks that are not generally encountered when doing business only in India,” it said.