Mumbai’s Chhatrapati Shivaji Maharaj International Airport will cut 265 weekly international slots from October 25. The cut is needed for the closure and rebuilding of Terminal 1. The terminal will stay closed until 2029-30. Around 46 airlines will be affected by the slot cuts. IndiGo loses the most with 74 weekly slots, followed by Air India with 33. Emirates and Etihad lose 10 slots each. Terminal 1 handles about 15 million passengers a year. The new terminal will have a capacity of 20 million. Many domestic flights will shift to Navi Mumbai airport during the closure. The international aviation body IATA has raised concerns about the sudden cut. Airlines say they are adjusting schedules. Passengers flying from Mumbai this winter may see fewer flight options. Mumbai is India’s second-busiest airport. Airlines have begun revising their winter schedules. Passengers should check flight status before travelling this winter. The rebuild aims to ease congestion and add capacity.