Adani with Air India Group and IndiGo Begin Phased Transition to Navi Mumbai International Airport

Mumbai’s aviation landscape is set for a historic transformation as Air India Group and IndiGo, in partnership with Adani Airports, announce phased transitions of flight operations from Chhatrapati Shivaji Maharaj International Airport (CSMIA) to the upcoming Navi Mumbai International Airport (NMIA). The move will ease congestion, enable infrastructure redevelopment, and position NMIA as a major international hub by 2027.

The phased transition of Air India Group and IndiGo operations to Navi Mumbai International Airport (NMIA) is driven by the urgent need to redevelop Mumbai’s Terminal 1 at Chhatrapati Shivaji Maharaj International Airport (CSMIA) and to establish a dual-airport system that can handle rising passenger traffic across the Mumbai Metropolitan Region.

This transition is not just about easing congestion — it’s about future-proofing Mumbai’s aviation ecosystem. By 2027, NMIA will emerge as a strategic hub for international operations, while CSMIA undergoes redevelopment to expand capacity. Together, they will create one of India’s most robust dual-airport systems, reshaping connectivity for millions of passengers.

Transition Timeline

• December 2026: Air India Express launches 4 daily domestic flights from NMIA.
• January 2027: Air India Express adds services to Kuwait (pending approvals) and Oman.
• Summer 2027: Air India transitions flights to Jeddah, Riyadh, Dammam, Doha, Muscat, Sharjah.
• February 2027: IndiGo begins shifting 12 daily international departures to NMIA.
• July 2027: IndiGo completes transition, adding Kathmandu as a new destination.

Strategic Impact

• Dual-Airport System: Mumbai will operate CSMIA + NMIA, balancing traffic and expanding capacity.
• Terminal 1 Redevelopment: Freed-up slots at CSMIA enable major redevelopment by 2030.
• International Hub Growth: NMIA emerges as a long-term hub for West Asia and South Asia routes.
• Fleet Expansion: IndiGo plans to leverage NMIA for new Asia, Africa, and Europe services with A321XLR aircraft.

Airline Transition Comparison

Airline	Start Date	Flights Moved	Destinations	Completion
Air India Express	Dec 2026	4 daily domestic	Kuwait, Oman, Jeddah, Riyadh, Dammam, Doha, Muscat, Sharjah	Summer 2027
IndiGo	Feb 2027	12 daily international	Bahrain, Riyadh, Dammam, Jeddah, Madinah, Kuwait, Ras Al Khaimah, Fujairah, Muscat, Dhaka, Jakarta, Kathmandu	July 2027

Risks & Challenges

• Passenger Confusion: Operating from two airports may initially inconvenience travelers.
• Approval Dependencies: Kuwait services await regulatory clearance.
• Infrastructure Readiness: NMIA must ensure multimodal connectivity and efficient transfers.
• Operational Balance: Airlines must coordinate slots to avoid competitive imbalance.

Industry Takeaway

The coordinated transition by Air India Group and IndiGo signals a new era for Mumbai aviation, with NMIA positioned as a global hub alongside CSMIA. For passengers, this means expanded connectivity, reduced congestion, and smoother travel experiences. For airlines, it unlocks growth capacity and strategic expansion opportunities across Asia and beyond.

Adani Airport Holdings Limited (AAHL) has worked closely with carriers to ensure transparent, equitable rebalancing of capacity across both airports.