For roughly 24 hours, Indian aviation appeared to be preparing for one of its biggest structural changes in decades.
Reports suggested that the Adani Group was evaluating the launch of an airline and had approached the government regarding restrictions that prevent the operators of Mumbai and Delhi airports from owning more than 10% of a scheduled airline. IndiGo responded publicly, warning that allowing airport operators to run airlines could create a “massive conflict of interest”.
There is, however, an important update.
On July 24, Adani Enterprises issued a formal stock-exchange clarification categorically denying the reports. The company said it was not evaluating any proposal to enter the airline business. The immediate story, therefore, is no longer that an Adani airline is definitely coming. It is that the possibility of airport-airline cross-ownership has entered India’s policy conversation.
That policy question deserves attention even if Adani never launches an airline.
How large is Adani’s airport business?
Adani Airport Holdings operates a portfolio of eight airports:
Ahmedabad, Lucknow, Mangaluru, Jaipur, Guwahati, Thiruvananthapuram, Mumbai and Navi Mumbai.
The word “operates” is important. These are not conventional privately owned properties in the same way that a company owns an office building. Airport businesses generally function through concession agreements, public-private partnerships and long-term operating rights, with substantial regulatory oversight.
Even so, the scale of the network is significant.
According to Adani Enterprises’ FY26 investor presentation, these eight airports handled 95.3 million passengers, approximately 619,000 aircraft movements and around 11.7 lakh metric tonnes of cargo during the year. The company estimates that its airports account for approximately 23% of India’s passenger traffic, 21% of aircraft movements and 29% of air-cargo volumes. Mumbai alone handled 55.3 million passengers, while Ahmedabad handled 13.8 million.
This is not merely a collection of terminals. It is one of the largest aviation infrastructure networks in the country.
How much money does Adani earn from airports?
Adani Enterprises reported total income of ₹13,081 crore from its airport segment in FY26, an increase of 28% from ₹10,224 crore in FY25. Airport EBITDA increased by 55% to ₹5,394 crore.
The composition of the ₹13,081 crore is particularly interesting:
- Aeronautical income: ₹4,948 crore, or 38%
- Non-aeronautical income: ₹6,401 crore, or 49%
- Cargo income: ₹795 crore, or 6%
- Other income: ₹937 crore, or 7%
Aeronautical income broadly includes charges connected with aircraft and passenger operations. Non-aeronautical income comes from areas such as duty-free retail, food and beverages, advertising, parking, lounges, commercial rentals and other services consumed by passengers inside and around airports.
In Adani’s case, non-aeronautical income is already larger than aeronautical income. This explains why airport operators increasingly think of airports not simply as transport infrastructure, but as consumer platforms with retail, hospitality, logistics, advertising and digital businesses attached to them.
There is a technical reporting distinction worth noting. AAHL’s own audited consolidated financial results show FY26 revenue from operations of ₹10,386.95 crore, total income of ₹12,643.50 crore and profit after tax of ₹1,731.04 crore. Adani Enterprises’ segment presentation reports airport total income of ₹13,081 crore. These disclosures use different reporting presentations and should not be treated as identical measures.
Why has IndiGo objected?
Rahul Bhatia, IndiGo’s managing director, argued that allowing airport operators to own airlines would create a serious conflict of interest and could ultimately work against consumers.
At present, IndiGo controls more than 65% of India’s domestic market, while IndiGo and the Air India group together account for close to 90%. The government has understandable reasons to want a third financially strong airline. A new competitor could reduce concentration, provide passengers with more alternatives and make the aviation system more resilient during large-scale disruptions.
IndiGo’s objection is not simply that it does not want another competitor. Its argument is that an airline owned by an airport operator would be competing on infrastructure controlled by its own parent group.
An airport decides or influences several commercially important aspects of airline operations, including terminal access, aircraft parking positions, boarding gates, check-in counters, lounges, ground-handling arrangements, operating windows, infrastructure development and commercial terms.
Slots are particularly sensitive.
India’s slot-allocation guidelines require coordinators to allocate slots in a neutral, transparent and non-discriminatory manner. However, the coordinator at a congested airport is designated by the airport operator. Even with formal rules, common ownership between the airport and one competing airline could create questions about whether all carriers are receiving equivalent treatment.
The concern is not limited to obvious discrimination.
A rival airline could reasonably ask whether the airport operator’s airline receives better gates, faster turnaround support, more convenient counters, favourable credit terms or earlier information about future capacity. Airlines also provide airports with commercially sensitive information about schedules, passenger volumes, expansion plans and route economics. Common ownership makes the separation of such information more important.
The competition issue, therefore, is not merely ownership. It is access to essential infrastructure and information.
Could vertical integration also produce benefits?
Yes.
Economic research does not suggest that every close relationship between an airport and an airline is automatically harmful.
Airports and airlines depend heavily on one another. Airlines generate passengers, while airports provide the capacity, services and commercial ecosystem required to move those passengers. Better coordination can improve terminal planning, aircraft turnaround times, connecting schedules, baggage movement and passenger experience.
An airport-backed airline may also be more willing to develop new routes, build a hub, serve underserved destinations or commit capacity to a new airport during its early years.
The OECD has noted that airports often possess substantial market power because airlines cannot easily replace access to a major city’s airport. At the same time, it has also recognised that long-term cooperation between airports and airlines can generate efficiency benefits. The challenge is distinguishing productive coordination from arrangements that exclude competitors.
In Adani’s case, the strategic argument would have been clear.
The group operates both Mumbai and Navi Mumbai airports, has exposure to ground handling, aviation services and pilot training, and earns more from non-aeronautical activities than from conventional airport charges. An airline could theoretically increase passenger traffic across this ecosystem, improve utilisation of the new Navi Mumbai airport and generate additional retail, advertising, cargo and hospitality income.
But that is precisely why regulators would need to examine the arrangement carefully. The commercial logic that makes vertical integration attractive to the owner can also create barriers for competitors.
Is there really “no global precedent”?
The statement that there is no global precedent is too absolute. There are precedents, although most are not directly comparable with the scale of Adani’s Indian airport network.
Bangkok Airways
Bangkok Airways owns and operates three airports in Thailand: Samui, Sukhothai and Trat. It simultaneously operates scheduled airline services.
This is one of the clearest examples of an airline and airport business existing within the same company. However, these are primarily smaller destination airports serving tourism markets. They are not comparable with an operator controlling several large metropolitan airports with dozens of competing airlines.
Qatar Airways Group
Qatar Airways Group includes MATAR, the company responsible for airport operations and management at Hamad International Airport in Doha.
This creates a vertically integrated aviation ecosystem containing the airline, airport operations, ground handling, catering, duty-free retail and other services. Qatar’s model, however, exists within a state-owned national aviation strategy centred on a single international hub. It is structurally different from a privately controlled operator competing in a large domestic aviation market.
Lufthansa and Munich Airport
Munich Airport and Lufthansa jointly operate Munich’s Terminal 2 infrastructure through a company in which Munich Airport holds 60% and Lufthansa holds 40%.
This is not common ownership of the entire airport and airline. It is a ring-fenced terminal partnership. The arrangement shows that airport-airline integration can exist, but it is usually limited to defined infrastructure, governed through a separate entity and accompanied by clear operational boundaries.
The international evidence therefore suggests that airport-airline integration is possible. What remains unusual is a private operator controlling multiple high-volume airports while also owning a major nationwide airline.
What would India need to protect competition?
A simple corporate separation would not be sufficient. Two subsidiaries can have different names while ultimately answering to the same controlling shareholder.
Any policy permitting cross-ownership would need stronger safeguards.
First, slot allocation would need to become institutionally independent. The coordinator for a congested airport should not report to an airport operator that also owns an airline. Slot decisions, capacity calculations and reasons for allocation should be independently reviewable.
Second, airports would need to publish comparable commercial terms. Charges, rebates, counter allocations, parking positions, ground-handling access and service standards should be documented so that competing airlines can identify discriminatory treatment.
Third, information barriers would have to be enforceable. The airport business should not be allowed to share rival airlines’ schedules, traffic projections, route plans or commercial data with the group’s airline.
Fourth, financial separation would be essential. Regulated airport revenue, passenger charges or monopoly infrastructure cash flows should not be used to subsidise losses at a related airline. Separate borrowing, audited related-party transactions and restrictions on cross-guarantees would be required.
Finally, both AERA and the Competition Commission of India would need continuing oversight. Approval should not be treated as a one-time ownership decision. Competitive behaviour would need to be monitored after operations begin.
The larger question for Indian aviation
India’s present market structure already contains concentration.
Nearly nine out of every ten domestic passengers fly with either IndiGo or an Air India group airline. That concentration may weaken competition in fares, routes and service quality. A well-capitalised third airline could be beneficial.
But airports are also concentrated assets. A city may have several airlines, but usually only one or two commercially viable airports. Giving the operator of that scarce infrastructure ownership of a competing airline could replace one form of concentration with another.
Adani has formally denied that it is evaluating an airline. The immediate speculation may therefore fade. The regulatory question should not.
Should India prioritise a new airline competitor even if it creates a vertically integrated aviation group?
Can regulation realistically ensure equal treatment when an airport operator’s own airline and its competitors are seeking the same slots, gates and infrastructure?
And if airport operators are eventually permitted to own airlines, should airlines also be allowed to acquire significant stakes in airports?
India may need more competition in the skies. But should that competition be created by increasing concentration on the ground?