Photo: Captain Catan, Wikimedia Commons, CC BY-SA 2.0. The check-in hall at Terminal 1B, Mumbai airport, photographed in 2007. The terminal may look different today.
Quick answer: Mumbai airport’s Terminal 1 is being redeveloped in phases, and the first part to be affected is the north section of Terminal 1B. Terminal 1 handles domestic passengers. The airport operator says 91 per cent of the airport’s passenger traffic will be unaffected, and that airlines will keep their winter schedule, which runs to 27 March 2027, at their existing terminals (Condé Nast Traveller India). The bigger changes are expected from the summer 2027 schedule, so check the airport and terminal printed on your ticket. This page covers the terminal. For the international route moves to Navi Mumbai, see our international flights moving to Navi Mumbai airport.
This guide follows press reports and statements from the airport operator, and plans can change. This site is independent and is not affiliated with any airport or airline.
What is happening to Terminal 1
| Point | What was reported | Source |
|---|---|---|
| What T1 handles | Domestic passengers | Condé Nast Traveller India |
| Scope | Phased closure and reconstruction. The first part affects the north section of Terminal 1B. | Adani Airports release and Condé Nast Traveller India |
| Earlier reports | Early reports said Terminal 1 would stay shut for about four years from 25 October, until 2029 to 2030. The operator then said the work would be phased. | The New Indian Express, 30 September and Condé Nast Traveller India |
| Winter schedule | Airlines operate their winter schedule, 26 October 2026 to 27 March 2027, from their existing terminals | Condé Nast Traveller India |
| Capacity | The operator says the airport will handle about 5 million fewer passengers a year from the summer 2027 schedule, and that 91 per cent of traffic is unaffected | AviNews and Condé Nast Traveller India |
Reports differ on exactly when each phase starts and finishes. One account has part of Terminal 1 closing in January 2027, and the early reports put the end of the work at 2029 to 2030. Treat any date as provisional until the airport operator or your airline confirms it for your flight.
Why it is being rebuilt
The airport operator cites safety concerns at the roughly 60 year old structure, and said that after a fire at Terminal 1 in April 2026 the planned closure and phased demolition could not be deferred (Adani Airports release). Hindustan Times reports that the operator had submitted an IIT Mumbai structural study to the airport tariff regulator in 2025, which described structural distress and seepage that repairs could not address (Hindustan Times).
What it could mean for your flight
- Until 27 March 2027: the airport operator and airlines agreed to run the winter schedule as planned from existing terminals. Domestic flyers should still check their terminal on the ticket or the airline’s message.
- From the summer 2027 schedule: about 5 million domestic passengers a year are expected to move to Terminal 2 as Terminal 1 closes in phases, according to Condé Nast Traveller India. Which airlines move and when was not confirmed in the sources reviewed.
- International flights: to free space at Terminal 2, some international services may move to Navi Mumbai airport. The operator has not allotted summer 2027 slots at the Mumbai airport to 12 of the 50 international airlines that sought them, and says it will restore historical slots after Terminal 2 is expanded (Indian Express). Those airlines have not publicly agreed to the move. See our international flights moving to Navi Mumbai airport for the current position.
If you live in Navi Mumbai
Mumbai airport and Navi Mumbai airport are separate airports, roughly 40 to 50 kilometres apart, so a change of airport affects ground transport, connections and the time you need to reach the terminal. Always check the airport code on your ticket, NMI for Navi Mumbai or BOM for Mumbai. Our Navi Mumbai airport guide covers reaching the airport from Navi Mumbai.
Before you travel
- Check the airport code and the terminal on your ticket and your airline’s latest message.
- Allow extra time on the day if your flight is from a terminal you have not used before.
- If you booked a flight for the summer 2027 season, look for schedule change messages from your airline.
- Keep your booking details, since an airline may offer a change if it moves your flight.
Frequently Asked Questions
Is Terminal 1 at Mumbai airport closed?
Not completely. The operator says the closure and reconstruction will be phased, beginning with the north section of Terminal 1B. Check the current status with the airport operator or your airline.
Which passengers use Terminal 1?
Terminal 1 handles domestic passengers, according to Condé Nast Traveller India.
Will my winter flight change?
The operator and airlines agreed to run the winter schedule, which ends on 27 March 2027, from existing terminals. Check your airline’s messages for your flight.
When will Terminal 1 be rebuilt?
Reports differ. Early reports pointed to 2029 to 2030, and the operator now describes a phased process. No single confirmed completion date was found.
Are international flights moving to Navi Mumbai?
Some airlines have announced moves, and the operator proposed shifting some routes from the summer 2027 schedule. See our guide on international flights moving to Navi Mumbai airport for the current position.
Sources
| Point | Source |
|---|---|
| Phased redevelopment, winter schedule, airline plans | Condé Nast Traveller India, updated 9 November 2026 |
| Reasons for the redevelopment and first phase | Adani Airports release |
| Early four year closure report | The New Indian Express, 30 September 2026 |
| Capacity effect | AviNews, 20 October 2026 |
| Summer 2027 slots | Indian Express |
| Structural study | Hindustan Times explainer |
Checked 12 November 2026. Plans change, so confirm the details with your airline or the airport operator before you travel.
NaviMumbai.com is an independent information site and is not affiliated with any government body.
