Mumbai International Airport Ltd (MIAL) has proposed a phased transition of five million passengers per annum (mppa) of international traffic from Chhatrapati Shivaji Maharaj International Airport (CSMIA) to facilitate the redevelopment of Terminal 1 (T1). The airport operator has asked airlines to submit their transition plans by November 3, 2026, for the proposed shift during the Northern Summer 2027 season.

The proposal was discussed at a meeting between MIAL and the Airline Operators Committee (AOC) on Wednesday as part of discussions on the dual-airport strategy for the Mumbai Metropolitan Region (MMR).