Navi Mumbai International Airport, officially D. B. Patil International Airport, is an international airport being constructed in Navi Mumbai, Maharashtra, India. It will serve in parallel as an alternative with Mumbai's existing Chhatrapati Shivaji Maharaj International Airport (CSMIA), becoming the second airport of the Mumbai Metropolitan Region.
The airport is a greenfield international airport being built by City and Industrial Development Corporation (CIDCO). It will be built in three phases, out of which the first phase of the airport will be able to handle 25 million passengers per annum. It will be expanded to its final capacity of third phase to handle more than 90 million passengers per annum. The Texas-based Jacobs Engineering Group, has charted the final masterplan for the airport, while the passenger terminals and the Air Traffic Control (ATC) tower have been designed by London-based Zaha Hadid Architects.The ₹16,700 crore (US$2.1 billion) project is being executed by Navi Mumbai International Airport Limited (NMIAL), a special-purpose vehicle formed by the Adani Airports Holdings Limited and CIDCO, which will hold 74 percent and 26 percent equity shares of NMIAL respectively. CIDCO will build the project through a public–private partnership (PPP) model on a Design, Build, Finance, Operate, and Transfer (DBFOT) basis. The airport covers an area of 1,160 hectares (4.5 sq.mi).The airport's construction was started in August 2021, and is expected to be fully operational by 2025.It will be connected with Navi Mumbai Metro's Line 1 and with the proposed Mumbai Metro's Line 8 (Gold Line). In the proposed Mumbai-Hyderabad High-Speed Rail (HSR) corridor from Mumbai to Hyderabad, the airport will be the starting point of the corridor, by having a terminal station.