India's largest airline by fleet size, IndiGo, has appointed William Walsh as its new chief executive, effective August 3. Walsh, the outgoing director-general of the International Air Transport Association, will succeed Pieter Elbers, who resigned in March after Indian regulators fined the airline over flight cancellations in late 2025.

The leadership change comes as IndiGo recovers from a turbulent period that saw billions wiped from its market value. The airline blamed disruptions on technology glitches, seasonal weather constraints, and challenges implementing India's revised crew safety rules. Walsh brings extensive experience as former CEO of British Airways and IAG to the role.

His appointment signals IndiGo's intent to stabilize operations and restore investor confidence after the regulatory scrutiny. The airline's board believes Walsh's global aviation expertise positions him well to navigate the carrier through its current challenges and capitalize on India's growing aviation market.