Foreign airlines have approached the Ministry of Civil Aviation over the proposed withdrawal of international services from Mumbai airport, raising concerns about historical slots, regulatory compliance and the planned transition to Navi Mumbai International Airport.
A disagreement over Mumbai’s airport redevelopment plans has intensified, with foreign airlines seeking intervention from the Union Ministry of Civil Aviation (MoCA) after reportedly being denied historical flight slots at Chhatrapati Shivaji Maharaj International Airport (CSMIA).
The dispute centres on Mumbai International Airport Limited (MIAL), the Adani Group-operated company responsible for managing the existing Mumbai airport, and its proposal to temporarily reduce passenger-handling capacity during the redevelopment of Terminal 1B.
According to a communication described in the source report, the Airline Operators Committee (AOC)-Mumbai has questioned whether the Centre approved the airport operator’s proposal to withdraw flights serving 14 international destinations from Terminal 2.
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Add INDYASTORY on GoogleThe committee has also raised concerns over the reported denial of historical slots to 11 Gulf-based carriers ahead of the Northern Summer 2027 aviation schedule.
The controversy highlights growing tensions between Mumbai’s long-term airport expansion plans and the operational requirements of airlines that already serve the city.
Why Have Foreign Airlines Approached the Aviation Ministry?
The latest intervention reportedly followed MIAL’s decision to reduce available capacity at Mumbai airport by approximately five million passengers per annum.
The proposed adjustment is linked to the redevelopment of Terminal 1B, which is expected to affect the airport’s ability to accommodate existing passenger traffic during construction.
In response, MIAL has sought to shift selected international services to Navi Mumbai International Airport (NMIA).
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Add INDYASTORY on GoogleHowever, representatives of foreign airlines have questioned the process used to implement the changes.
The AOC-Mumbai reportedly wrote to MoCA Secretary Sameer Sinha seeking clarification on whether the government had formally approved the proposed withdrawal of flights from Terminal 2.
The committee also requested government intervention to protect airlines’ established operating arrangements.
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Add INDYASTORY on GoogleIts objection is not necessarily to the redevelopment itself, but to the proposed capacity restrictions and their impact on existing international services.
Which 11 Airlines Are Affected by the Slot Dispute?
According to the supplied report, the airlines identified in the committee’s communication include:
- Gulf Air
- Riyadh Air
- Air Arabia
- Kuwait Airways
- Oman Air
- Flyadeal
- Saudia
- Qatar Airways
- Jazeera Airways
- SalamAir
- Flynas
These carriers serve different markets across West Asia and operate under distinct commercial and scheduling arrangements.
The report alleges that historical slots were denied to the listed airlines because of the proposed airport capacity reduction.
However, the specific number of slots affected for each carrier, the routes involved and whether any allocations were subsequently restored have not been established in the information provided.
Those details are important because the operational consequences may vary considerably between airlines.
What Are Historical Slots, and Why Do Airlines Want Them Protected?
Airport slots are permissions that allow an airline to schedule an arrival or departure at a particular time at a capacity-constrained airport.
For international carriers, these timings are essential to planning aircraft rotations, onward connections, crew schedules and passenger itineraries.
Historical slot rights generally provide qualifying airlines with priority to retain previously operated slots under applicable allocation rules.
However, historical precedence is governed by slot allocation requirements and does not amount to an unconditional guarantee when legitimate capacity constraints arise.
In the Mumbai dispute, the AOC has asked the government to ensure that the airport operator follows the applicable 2013 Ministry of Civil Aviation slot guidelines and International Air Transport Association scheduling principles.
The committee’s position is that changes affecting established airline operations should be supported by clear justification, advance consultation and regulatory compliance.
The central question is whether the proposed reduction and resulting slot decisions followed the required procedures.
Why Is Adani Planning to Reduce Mumbai Airport’s Capacity?
MIAL’s proposed changes are connected to the planned redevelopment of Terminal 1B.
The project is intended to modernise ageing airport infrastructure and increase long-term passenger-handling capacity.
However, major construction at an operating airport can create temporary limitations.
Passenger traffic that would ordinarily use the affected terminal may need to be accommodated elsewhere, potentially increasing pressure on other airport facilities.
MIAL has proposed reducing capacity at the existing airport and using Navi Mumbai International Airport to handle selected services.
The reported reduction amounts to five million passengers annually.
The operator’s broader objective is to manage the redevelopment while gradually developing the newer airport as an additional aviation hub for the Mumbai metropolitan region.
Airlines, however, are seeking greater certainty about the commercial and operational effects of the proposed transition.
Which 14 International Destinations Are Included in the Proposal?
The proposed flight redistribution involves 14 international destinations previously identified in transition discussions.
According to the report, these destinations are:
| Destination | Country |
|---|---|
| Dammam | Saudi Arabia |
| Riyadh | Saudi Arabia |
| Muscat | Oman |
| Madinah | Saudi Arabia |
| Jakarta | Indonesia |
| Jeddah | Saudi Arabia |
| Dhaka | Bangladesh |
| Doha | Qatar |
| Bahrain | Bahrain |
| Kathmandu | Nepal |
| Kuwait | Kuwait |
| Ras Al Khaimah | United Arab Emirates |
| Sharjah | United Arab Emirates |
| Fujairah | United Arab Emirates |
The list covers major routes connecting Mumbai with West Asia and other parts of Asia.
These destinations are important for different types of travel, including employment, family visits, tourism and business.
However, their inclusion in a transition proposal does not establish that all flights serving these cities have already moved to Navi Mumbai.
Actual operating airports and schedules must be confirmed with individual airlines.
MIAL Says Consolidating Routes Could Reduce Passenger Inconvenience
The airport operator has presented a different view of the proposed transition.
In an email reportedly sent to the Ministry of Civil Aviation on October 30, MIAL argued that transferring services associated with the identified destinations could help keep relevant flights together at a single airport.
Its position was that concentrating operations could reduce the difficulties created when services to the same destinations are divided between Mumbai’s two airports.
For example, if different airlines serving the same international destination departed from separate airports, passengers might need additional clarification when booking or changing flights.
Keeping those services at one location could simplify certain aspects of airport navigation and passenger planning.
However, the benefits would depend on how the proposal was implemented and whether connecting domestic and international services remained coordinated.
The airport operator’s reasoning therefore does not eliminate every concern raised by foreign carriers.
Why Are Airlines Opposing the Proposed Transition?
Foreign carriers have expressed concern about the potential loss of established airport access and the difficulties involved in relocating services.
International operations depend on more than runway availability.
Airlines also require suitable ground-handling facilities, passenger processing systems, aircraft maintenance support, catering arrangements and cargo infrastructure.
Moving from one airport to another can involve negotiations with service providers and adjustments to operational procedures.
For carriers already operating from CSMIA, these changes may create additional costs.
Some airlines may also need to review their schedules to maintain connections with other destinations.
The proposed relocation is particularly complicated because CSMIA and Navi Mumbai International Airport are separate facilities located across the metropolitan region.
Although the newer airport could support future aviation growth, airlines want confidence that the transition will not undermine existing services.
What Has the Airline Operators Committee Asked the Centre to Do?
The AOC has reportedly requested that the Ministry of Civil Aviation intervene in the slot allocation dispute.
The committee wants MIAL to reconsider the reported denial of historical slots to affected airlines.
It has also sought assurance that allocation decisions comply with established aviation guidelines.
Importantly, the committee has expressed support for the redevelopment of Terminal 1B.
Its position, according to the supplied report, is that infrastructure upgrades should be accompanied by meaningful consultation with the airlines affected.
The AOC has called for transparency in capacity assessments and protection of legitimate operational interests.
This distinction matters because the disagreement is primarily about implementation rather than whether Mumbai requires modern airport infrastructure.
How Does the Summer 2027 Schedule Affect the Dispute?
The proposed capacity reduction is linked to the Northern Summer 2027 airline scheduling season, which begins in late March 2027.
Airlines prepare seasonal schedules well in advance because international operations require coordination across multiple airports and regulatory jurisdictions.
A change in available slots can therefore affect planning decisions made months before flights operate.
Carriers need reliable information about departure and arrival permissions to publish schedules, sell tickets and arrange aircraft operations.
If historical slots are denied or revised, airlines may need to adjust services or seek alternative timings.
The dispute is particularly sensitive because uncertainty about slot allocations can have commercial consequences even before any flight is actually relocated.
The available report does not establish whether a final resolution has been reached following the relevant November 2026 allocation discussions.
Could the Dispute Affect International Flights From Mumbai?
The potential impact depends on whether the proposed restrictions are implemented and how airlines respond.
If established carriers lose access to their preferred slots at CSMIA, they may need to consider alternative operating times, relocation to Navi Mumbai or changes to their planned services.
However, an airport capacity proposal does not automatically mean that every affected flight will be cancelled.
Some airlines may be able to adapt their schedules, while others may seek regulatory intervention or negotiate revised arrangements.
The specific consequences would depend on final slot allocations and operational agreements.
Passengers should therefore avoid assuming that a route has been suspended or relocated solely because it appears in the list of proposed transition destinations.
Confirmed airline schedules remain the appropriate source for individual travel arrangements.
What Could the Changes Mean for Passengers?
For travellers, the main concerns involve airport access, connecting flights and potential changes to travel costs.
Mumbai’s existing airport and Navi Mumbai International Airport serve the same wider metropolitan region but are located in different areas.
Passengers connecting between domestic and international services may face additional logistical challenges if their flights use separate airports.
Ground transfers can increase journey times, particularly during periods of heavy road traffic.
Travellers may also need to consider baggage handling, immigration procedures and check-in deadlines when planning connections.
However, the experience would differ depending on the itinerary.
A passenger whose flights operate entirely from one airport would not necessarily face the same inconvenience as someone transferring between two facilities.
Clear communication from airlines and airport authorities would therefore be essential if the proposed changes proceed.
Why the Government’s Role Matters
The Ministry of Civil Aviation has been asked to clarify whether the airport operator’s proposed capacity reduction received the necessary approval.
This question is important because significant changes at a major coordinated airport can affect multiple airlines and international routes.
The relevant aviation authorities must balance legitimate infrastructure constraints with established scheduling requirements.
Airport operators need flexibility to carry out construction and maintain safe operations.
Airlines, meanwhile, require transparent processes and sufficient notice to adjust their networks.
Regulatory oversight can help establish whether a proposed change is properly justified and whether stakeholders have been treated consistently.
The available information does not establish how the Ministry has responded to the latest request for clarification.
Mumbai’s Airport Expansion Faces a Difficult Transition
The dispute illustrates a broader challenge facing rapidly growing aviation markets.
Developing a new airport can create opportunities for additional capacity, new routes and improved infrastructure.
However, transferring established services is often more complicated than introducing new flights.
Existing airlines have invested in operating arrangements, passenger networks and airport-specific infrastructure.
A successful transition therefore requires coordination between airport operators, airlines, regulators and ground transport providers.
In Mumbai’s case, the redevelopment of Terminal 1B and the expansion of services at Navi Mumbai International Airport are closely connected.
The challenge is ensuring that long-term infrastructure development does not produce avoidable disruption during the transition.
What Happens Next?
The next significant development will be clarification from aviation authorities about the proposed capacity reduction and the allocation of historical slots.
Airlines will also be looking for certainty about whether their existing operations can continue at CSMIA or whether alternative arrangements will be required.
MIAL, meanwhile, must balance the redevelopment schedule with the operational demands of a major international airport.
Until official decisions are available, the reported denial of slots and proposed withdrawal of flights should be treated as part of an ongoing regulatory dispute rather than evidence that the affected routes have been cancelled.
The larger issue is how Mumbai can modernise its airport infrastructure while protecting airline connectivity, maintaining transparent scheduling arrangements and minimising disruption for passengers.
