India, March 24 -- IndiGo has warned that the Iran war, and the consequent surge in crude oil prices, is set to weigh on travel demand during the summer season, even as airlines pass on higher expenses to passengers.

The budget carrier, which enjoys over 60% market share in India, signalled that its international summer schedule remains fluid. Domestically, it's still recovering from significant operational disruptions that forced a scale-back in December.

"There is a very material escalation in operating costs, with fuel and forex-related costs expected to continue to increase substantially," an IndiGo spokesperson said in a statement on Tuesday.

IndiGo warnings come even as an escalating Iran war continues to rattle global crude oil ...