Mumbai International Airport Ltd (MIAL) is facing stiff airline opposition over a plan to slash 265 weekly international slots starting October 25 to support Terminal 1 redevelopment. The aviation ministry has called for a meeting on October 6 to resolve the standoff, as carriers warn of significant disruptions to winter schedules and operational logistics.
A major operational dispute has erupted between Mumbai International Airport Ltd (MIAL), an Adani Group subsidiary, and airline operators over a proposal to cut international flight capacity at Mumbai’s Chhatrapati Shivaji Maharaj International Airport. The airport operator has proposed a reduction of 265 weekly international departure slots—approximately 33% of the current capacity at Terminal 2—effective October 25, 2026. MIAL states that this reconfiguration is necessary to manage domestic traffic logistics ahead of the scheduled redevelopment of the aging Terminal 1, which is set to begin in January 2027.
Airline operators, including major domestic carriers like IndiGo and Air India, have strongly resisted the move. The Airline Operators Committee-Mumbai (AOC) has rejected the mandate, pointing out that airlines had already finalized their Winter 2026-27 schedules in June. Carriers argue that the sudden announcement forces them to cancel confirmed tickets and disrupt fleet deployment, causing both financial and reputation damage. The International Air Transport Association (IATA) has also entered the conversation, urging for greater regulatory oversight and data transparency regarding the actual capacity constraints at the airport.
The standoff has reached a critical stage with MIAL demanding that airlines identify specific slots for removal by 4 PM on October 6, 2026, or face unilateral cuts. In response to the growing tension, the Civil Aviation Ministry has scheduled an emergency meeting with all stakeholders on the same day to mediate the impasse. This intervention is seen as a key step, as the Ministry holds the authority to ensure that infrastructure development does not come at the cost of air connectivity or passenger convenience.
Beyond operational friction, the proposal raises questions about transition costs for travelers. MIAL plans to shift some operations to the new Navi Mumbai International Airport, where the user development fee is pegged at ₹1,225, nearly double the ₹615 currently charged at the main Mumbai terminal. While the operator has suggested mechanisms to mitigate these costs, airlines remain skeptical about the feasibility of such a large-scale shift, particularly since the current infrastructure master plan was not expected to undergo such drastic changes until 2029.
Investors and market participants are monitoring the outcome of the October 6 ministry meeting. While the Adani Group's airport business remains a core pillar of its infrastructure portfolio, public standoffs with major global and domestic airlines can lead to increased regulatory scrutiny. The final resolution will determine whether the airport can proceed with its redevelopment timelines without compromising service standards or facing further backlash from the aviation industry.