IndiGo, Air India Begin Phased Move to Navi Mumbai Airport

Air India Express will begin four daily domestic flights from Navi Mumbai International Airport in December 2026, then phase its West Asia operations to the new airport from January 2027, NDTV reported. IndiGo has separately confirmed to India Today that it will move 12 daily international flights to Navi Mumbai by February 2027.

Domestic flights land first, giving the new airport's check-in, security, and baggage systems a smaller-scale test before international operations start. Air India Express, the low-cost international arm of the Tata-owned Air India Group, will use those first months to smooth crew rostering and ground handling. IndiGo's international transfer in February places the country's largest domestic carrier into the new airport as the winter schedule eases into the summer peak.

Why the existing airport could not wait

Mumbai's Chhatrapati Shivaji Maharaj International Airport has operated near saturation for years. Airlines cannot add frequencies during peak hours because there are no slots left. New routes to the Gulf, East Africa, and Southeast Asia have been blocked not by lack of demand but by lack of runway time. The shift to Navi Mumbai creates capacity where the passenger is, rather than forcing airlines to consolidate in Delhi or route travellers through Dubai and Doha.

Aviation consultancy CAPA India has argued that the new airport must open with a meaningful airline presence, not as a symbolic terminal. The phased approach by Air India Express and IndiGo delivers that: domestic first, international second, with Gulf routes moving after the airport's immigration and baggage systems have handled a few months of real volume.

The Gulf routes carry more than passengers

West Asia is the densest international market for Indian carriers. The route network between Mumbai and Dubai, Abu Dhabi, Doha, and Muscat supports labour mobility, remittance flows, and cargo. When Air India Express shifts its West Asia operations from January 2027 and IndiGo moves 12 international flights by February 2027, the new airport will begin absorbing high-frequency, price-sensitive traffic that currently competes for scarce slots at the older facility.

That has a direct strategic consequence. Indian negotiators have sought additional bilateral traffic rights on Gulf routes from a position of infrastructure strength, not as a request from a constrained player. A second Mumbai airport operating at scale changes that conversation. It gives Indian carriers the ability to schedule additional frequencies without waiting for the existing airport to free a slot. The result is not a zero-sum transfer of flights. It is an expansion of the total number of seats Indian airlines can offer on routes where demand has outpaced supply for a decade.

What still has to work on the ground

A separate LiveMint report has noted that some airlines resisted the proposed shift to Navi Mumbai, citing operational costs, slot-allocation disputes, and Mumbai airport redevelopment plans. The friction is real. Moving an aircraft base from one airport to another involves new crew rosters, maintenance arrangements, catering contracts, and passenger-facing logistics. If the transition is not coordinated, passengers could face longer taxi times or missed connections.

The larger unknown is surface connectivity. Navi Mumbai International Airport will only work for Mumbai's residents if road and rail links are fast enough to make the airport competitive with the older facility. Without fast multimodal access, the new slots will show up on airline schedules but not in the passenger's actual travel time. Maharashtra's planners have flagged this as a priority, but building last-mile connections will take longer than the runway itself.

The airport was planned to do more than move passengers. A second international gateway in the Mumbai Metropolitan Region supports cargo, aircraft maintenance, and the services economy that grows around a large airport. Those jobs tend to locate near the runway, not near the old terminal. As IndiGo and Air India Group shift flights, ground handling, catering, and logistics providers will follow. That dispersal of economic activity from south Mumbai to Navi Mumbai is part of the region's long-term rebalancing.

The shift also alters the competitive map among Indian carriers. IndiGo's 12 international flights moving to Navi Mumbai gives the country's largest domestic airline a second hub in the Mumbai region, from which it can launch more direct Gulf flights without waiting for CSMIA slots. Air India Express gains the same flexibility. When two large airlines move simultaneously, pressure on smaller carriers to find slots at the old airport eases, and the old airport can serve more point-to-point domestic traffic for cities across western India.

For Indian passengers, the first months of the Navi Mumbai transition will be a scheduling story: Air India Express domestic flights from December, IndiGo international flights from February, with Gulf routes moving through the first quarter of 2027. For the aviation system, it is a capacity story. Mumbai finally has a second airport with room to grow. The test is whether a passenger from south Mumbai can reach the new terminal in less time than the old one, and whether airlines use the new capacity to add routes instead of merely relocating them.