Mumbai’s airport dispute has now become a test of who controls access to India’s most valuable aviation market. It is also a test of whether the country can make two airports work as one system, rather than using Navi Mumbai as a holding pen for flights that no longer fit at the old one.
The immediate issue is blunt. Mumbai International Airport Ltd wants 46 airlines to cut or move 265 of the 770 weekly international departures from Terminal 2 from October 25. The reduction is meant to create room for domestic traffic that will be displaced when redevelopment of Terminal 1 begins in January. Airlines were told to identify the services they would temporarily discontinue or shift by 4 pm on October 6.
If they do not choose, MIAL says it will. The airport operator has told airlines that it will determine the slots to be discontinued according to operational capacity and implementation considerations, then communicate the final plan to affected carriers. In practical terms, the slot allocator in this transition is MIAL, with the civil aviation ministry brought in to mediate a dispute that has become too large for the airport and its customers to resolve alone.
That is a sharper power than an airport operator usually likes to exercise in public. Airlines hold historic slots, build schedules around them and sell tickets months ahead. MIAL says those historic rights will be honoured again when the rebuilt Terminal 1 comes into service. But a temporary loss of a Mumbai slot is not a small inconvenience. It can remove a commercially valuable departure time from an airline’s schedule for years, while passengers migrate to rivals or abandon the route.
The question confronting the ministry’s meeting is therefore larger than how to redistribute 265 flights. It is whether Mumbai and Navi Mumbai can be planned as one metropolitan aviation system when they are 50 kilometres apart, served by different road journeys and run by operators with separate physical constraints.
A true dual-airport system needs a clear logic. London can divide traffic between Heathrow, Gatwick, Stansted, Luton and City because the market has spent decades learning what each airport is for. New York does the same through JFK, Newark and LaGuardia. Tokyo uses Haneda and Narita for different mixes of domestic, international and premium traffic. Even then, airlines complain about split operations, missed connections and fragmented demand.
The most disruptive answer is to split each airline between the two airports. That is the option MIAL’s plan appears to invite. An airline could keep some flights at Mumbai and move others to Navi Mumbai. The result would be more aircraft movements across the metropolitan area, but a weaker network for the carrier. It would need separate ground handling, catering, security procedures, crew transport, airport offices, staff rosters, maintenance cover and passenger support at both airports.
Air France KLM has already said that splitting operations is not practical. Its reasoning is hard to dismiss. A carrier with teams and suppliers already established at Mumbai would need to duplicate those functions at Navi Mumbai.
A third model would divide flights by route type. Mumbai could retain premium long haul traffic, high yielding business routes, connections and flights with substantial belly cargo. Navi Mumbai could take lower frequency leisure services, visiting friends and relatives traffic, charter flights and routes whose passengers are more likely to live closer to the new airport.
It is neat on paper and awkward in reality. Airlines do not classify a route so simply. A flight from Mumbai to the Gulf can carry labour traffic, families, corporate travellers, high value cargo and connections in the same cabin and hold. A European airline may fly only once a day. Moving that flight to Navi Mumbai does not merely shift a leisure service. It shifts the entire Mumbai market for that airline.
A domestic and international division is more tempting. Navi Mumbai could become the home of domestic low cost traffic, while Mumbai remains the international gateway. That is the pattern some cities have tried. But the current proposal moves in the opposite direction, asking airlines to reduce or shift international departures from Terminal 2 so domestic services displaced by Terminal 1 works can be accommodated.
The ministry’s role is to stop this becoming a raw contest of airport power. MIAL has operational control over Terminal 2 capacity and is driving the immediate slot-reduction process. The ministry has policy authority and can demand a transition that does not damage competition, passenger interests or India’s international aviation relationships. The Directorate General of Civil Aviation and airport coordinators will have roles in the wider schedule and safety framework. But the immediate allocation decision lies with MIAL unless the ministry intervenes or secures an agreed plan.
The dispute is about 265 flights today. It is really about whether India can turn a second runway system into a second gateway, or whether it simply moves congestion from the terminal to the map.