Aviation
Airlines, airports and the economics of flight
From a slot at a congested airport to a seat at 35,000 feet
Why does this industry exist?
This industry exists because speed has genuine, measurable economic value, a business meeting, a medical emergency, a time-sensitive cargo shipment, all become possible across distances that would otherwise take days by road or rail. Aviation's entire value proposition is compressing travel time, at a cost premium enough people and businesses are willing to pay to make the whole industry commercially viable.
The reason this industry is regulated so heavily, airport slots, international traffic rights, ATF taxation, safety certification, all covered elsewhere on this site, is that air travel intersects public safety, national sovereignty over airspace, and genuinely scarce physical infrastructure, runways and airspace capacity cannot simply be expanded on demand the way, say, a warehouse can, making government coordination unavoidable in a way few other consumer industries require.
Aviation moves people and cargo faster than any other mode of transport, at a cost structure dominated by one input, ATF, more than almost any other consumer-facing industry on this site, and constrained by resources, airport slots, international traffic rights, that no amount of capital alone can simply buy more of. India's aviation story right now is one of the most dramatic fleet expansions anywhere in the world, layered on top of a genuinely unusual current dynamic.
As of mid-2026, Akasa Air, the newest of India's major carriers, is actually growing capacity faster than IndiGo and Air India, both of which have been trimming capacity, a reversal of the usual pattern where established leaders grow and new entrants fight for scraps, and a sign of just how competitively unsettled Indian aviation remains even after years of consolidation.
Value chain
ATF cost: the single input that decides whether an airline's quarter is profitable
Aviation Turbine Fuel, already covered in depth on this site's Oil & Gas coverage, typically accounts for 30-40% or more of a full-service Indian carrier's total operating cost, making it by far the single biggest lever on quarterly profitability, more than fleet size, load factor or even ticket pricing in many quarters. This is exactly why UDAN's ATF tax concessions matter so disproportionately to regional route viability, and why airlines lobby so persistently for ATF to be brought under GST.
Every other cost in this industry, aircraft leasing, crew, airport charges, MRO, is comparatively more predictable and controllable than ATF, which moves with global crude prices entirely outside any airline's control, making fuel hedging strategy and route fuel efficiency genuinely central competitive levers in a way few other input costs are for other industries on this site.
The industry's basic playbooks
Indian aviation now runs on a small number of genuinely distinct carrier strategies.
Air India, offering a broader international network and premium cabin options.
IndiGo, India's largest carrier by far, built around point-to-point efficiency and cost discipline.
Akasa Air, the newest major entrant, currently expanding capacity faster than either established leader.
Anatomy: the physical & regulatory chain, part by part
Behind the flight schedule, this industry runs through a specific set of physical and institutional constraints.
India's aviation market is one of the fastest-growing in the world, driven by a rapidly expanding domestic fleet and rising air travel penetration.
Projected to reach ~$28.96 billion by 2031. UDAN has operationalised 625 routes and 85 airports as of 2025.
India's fleet race: who's actually growing capacity right now
The headline story isn't the biggest airline, it's that the newest, smallest carrier is currently growing fastest while the two giants trim capacity.
- IndiGo48.0%
- Air India Group40.0%
- Akasa Air12.0%
Routes operationalised under UDAN, 2016 to 2026
UDAN didn't exist before 2016; regional connectivity has scaled from zero to 625 routes and 85 airports under a further decade of committed Modified UDAN funding.
Raw materials
The dominant operating cost, already covered in depth as a distinct oil-gas product on this site.
Sourced from a global duopoly of manufacturers (Boeing and Airbus), acquired via purchase or lease.
Engine and airframe components, increasingly serviced domestically as India's MRO capacity grows.
What creates demand
- Rising middle-class air travel penetration
As incomes rise, flying is shifting from an occasional luxury to a routine travel choice for a much larger share of Indians.
- UDAN-driven regional connectivity
Affordable fares to smaller cities are unlocking genuinely new air travel demand outside major metros.
- Business & GCC-driven corporate travel
Growth in India's corporate and Global Capability Centre economy sustains premium and business travel demand.
- Fleet expansion enabling lower fares
Rapid capacity growth, especially from Akasa, is intensifying price competition, itself a further demand driver.
What holds supply back
- Airport slot scarcity
Mumbai and Delhi's congested-airport status caps how much capacity any airline can add at India's most in-demand hubs, regardless of aircraft availability.
- ATF cost volatility
Global crude price swings and outside-GST state taxation keep fuel costs both high and unpredictable.
- Aircraft delivery delays
Global manufacturer backlogs at Boeing and Airbus have forced Indian carriers toward wet leasing to bridge capacity gaps.
- Bilateral traffic rights caps
International expansion, to Gulf markets especially, remains capped by government-negotiated BASA terms, not airline ambition alone.
Trade & balance of payments
Aviation is not a large direct goods trade item, but it carries real foreign exchange exposure: aircraft are overwhelmingly imported from Boeing and Airbus, ATF-linked costs move with global crude prices, and a meaningful, growing share of MRO work has historically been sent overseas rather than performed domestically, an indirect but genuine services trade outflow.
That MRO outflow is now reversing. India's domestic MRO market grew roughly 50% in fiscal 2026 over fiscal 2024, and is projected to grow from Rs 38,350 crore in 2025 to Rs 53,392 crore by 2030, a direct, deliberate policy and commercial push to keep more aircraft maintenance spending, and the jobs and capability that come with it, inside India rather than exporting it to established overseas MRO hubs.
10 years ago vs now
Around 2015-16, UDAN did not yet exist, regional air connectivity to smaller cities was minimal, India's combined major-airline fleet was a fraction of today's size, and domestic MRO capacity was small enough that a large share of maintenance work routinely went overseas.
UDAN has operationalised 625 routes and 85 airports with a further decade of committed funding under Modified UDAN, India's three major carriers are collectively projected to operate roughly 1,250 aircraft by 2030, domestic MRO revenue is growing at roughly 50% year-on-year, and Akasa Air, founded only in 2022, is now growing capacity faster than either established leader.
The five forces shaping this industry
| Supplier power | High | The Boeing-Airbus aircraft duopoly, and ATF's crude-linked pricing outside any airline's control, both give suppliers significant leverage. |
| Buyer power | Moderate | Price-sensitive leisure travellers have real switching power on price-transparent routes; corporate travel buyers hold more negotiating leverage on volume. |
| Threat of substitutes | Low-Moderate | Rail (especially high-speed rail ambitions) and road are real substitutes on shorter routes, but aviation has no substitute for genuinely long-distance or international travel. |
| Barriers to entry | High | Capital intensity, slot access at congested airports and regulatory certification all keep the field of credible new entrants narrow. |
| Rivalry among existing players | High | IndiGo, Air India and Akasa compete intensely on price and capacity, with the current unusual dynamic of the smallest player growing fastest. |
How the industry actually earns
Airlines earn on the spread between fare revenue and the cost of flying a route, ATF, crew, airport charges and leasing cost dominant among them, with load factor (how full each flight is) and yield (average fare per passenger) together determining route-level profitability.
MRO providers earn service fees for scheduled and unscheduled maintenance work, a business whose revenue scales directly and predictably with total fleet size and flying hours across the industry, largely independent of any single airline's individual profitability.
Cost structure: fuel dominates, everything else is comparatively manageable
ATF's 30-40%-plus share of operating cost makes this industry's cost structure genuinely unusual, most manufacturing and service businesses on this site do not have a single input this dominant, which is exactly why fuel-efficient aircraft, careful route planning and ATF tax concessions like UDAN's matter so disproportionately to airline profitability.
Aircraft acquisition cost, whether through purchase or lease, is a major upfront or ongoing commitment, but one airlines can at least partially control through fleet strategy, wet leasing for short-term flexibility, dry leasing or purchase for long-term capacity, unlike ATF cost, which no airline can meaningfully hedge away entirely.
Projected 2030 fleet size: the scale of India's aviation build-out
Combined fleet across India's three major carriers is projected to approach 1,250 aircraft by 2030.
Challenges
- 01
ATF's outside-GST tax treatment continues to be a major, unresolved cost burden airlines have lobbied against for years without success.
- 02
Airport slot scarcity at Mumbai and Delhi caps how much capacity even a well-funded, fast-growing airline can add at India's most in-demand hubs.
- 03
Global aircraft delivery delays from Boeing and Airbus have forced Indian carriers toward more expensive wet leasing to bridge capacity gaps.
- 04
Bilateral Air Services Agreement caps continue to constrain international expansion to high-demand markets, particularly the Gulf, independent of airline ambition.
- 05
IndiGo and Air India's recent capacity trimming, even as Akasa expands, signals real near-term uncertainty about overall industry capacity discipline.
Players, by value chain stage
- Air India (Tata Group)UnlistedIndia's flagship full-service carrier, targeting 500 aircraft by 2030
- IndiGoListedIndia's largest carrier by far, targeting 600 aircraft by 2030
- Akasa AirUnlistedFastest-growing carrier in 2025-26, 40th aircraft inducted 2026
- Air India Engineering Services / GMR AeroTech and other domestic MRO providersUnlistedGrowing domestic maintenance capacity as the fleet expands
How the major players compare
| Company | Stage | Scale | Listed |
|---|---|---|---|
| IndiGo | Low-cost carrier | India's largest airline, targeting 600 aircraft by 2030 | Yes |
| Air India (Tata Group) | Full-service carrier | Flagship carrier, targeting 500 aircraft by 2030 | No |
| Akasa Air | Challenger carrier | Fastest-growing carrier, targeting 226 aircraft by 2030 | No |
Government policy, last 15 years
Capped fares on regional routes and subsidised the gap through Viability Gap Funding and ATF tax concessions.
Returned Air India to the Tata Group and consolidated it with Vistara, reshaping the full-service carrier landscape.
India's newest major carrier began operations, rapidly scaling fleet and network since.
Continued policy changes making domestic MRO more tax-competitive against sending maintenance work overseas.
A further decade of committed funding, Rs 28,840 crore, extending regional connectivity support.
Recent developments
Continuing rapid fleet growth, with a target of 226 aircraft by 2030 and 30-40% annual growth planned over five years.
Both established carriers have been trimming capacity even as Akasa expands aggressively, an unusual reversal of typical market dynamics.
Crossing Rs 4,500 crore in fiscal 2026, reflecting both fleet growth and improved tax competitiveness for domestic maintenance.
A decade-long (2026-2036) commitment to continued regional connectivity funding.
What could disrupt this
A sustained global crude price spike would directly and immediately hit every Indian carrier's largest cost line simultaneously.
Continued Boeing/Airbus backlogs could force costlier, prolonged reliance on wet leasing across the industry.
If Akasa's rapid growth triggers an aggressive capacity and price war, industry-wide profitability could suffer even as passenger volumes grow.
As fleets approach 1,250 combined aircraft by 2030, airport and airspace capacity could become an increasingly binding constraint.
The road ahead, next five years
Over the next five years, expect continued fleet expansion toward the roughly 1,250-aircraft combined 2030 target, deepening UDAN-driven regional connectivity under the decade-long Modified UDAN commitment, and accelerating domestic MRO capacity build-out.
The real near-term question is whether Akasa's current growth spurt, and IndiGo and Air India's simultaneous capacity trimming, settles into a new, more genuinely three-way competitive equilibrium, or whether one side of that dynamic reverses again as aircraft deliveries and fleet plans play out.
Five questions worth asking
- 01
Will Akasa Air sustain its current growth pace through 2030, or does its rapid expansion moderate once it reaches a more mature fleet size?
- 02
Why are IndiGo and Air India trimming capacity even as overall Indian aviation demand keeps growing, and does that reverse once aircraft delivery delays ease?
- 03
Will ATF finally move under GST, meaningfully changing the industry's dominant cost structure, or does this remain a persistent, unresolved lobbying point?
- 04
Can India's domestic MRO capacity growth keep pace with a fleet approaching 1,250 aircraft, or does a meaningful share of maintenance work continue going overseas?
Sources & methodology
Figures on this page are drawn from the following primary and secondary sources, cross-checked where more than one was available. Ranges are shown, rather than a single false-precision number, where sources disagreed.
- — Mordor Intelligence and IMARC Group, India aviation market sizing
- — Ministry of Civil Aviation, UDAN and Modified UDAN scheme documentation
- — CRISIL Ratings, India MRO market growth analysis
- — Business Standard and BusinessToday, 2025-26 airline fleet and capacity reporting
- — IBEF, Indian civil aviation industry reports
All concepts in Aviation
30 concepts
A, B, C & D Checks
The escalating maintenance inspections every aircraft goes through, from a quick daily look-over to a total teardown
Aeronautical vs Non-Aeronautical Airport Revenue
Why the shops and parking lots inside an airport can matter as much to its finances as the runway itself
Air India's Privatisation
How the airline the government spent decades trying to sell finally found a buyer, in the family that originally started it
Airline Ancillary Revenue
Why a budget airline's real profit often comes from everything except the base ticket price
Airport Cargo Terminal Infrastructure
The often-overlooked warehouse-like buildings that actually make air freight possible
Airport User Development Fee (UDF)
The charge quietly built into your ticket price that funds the airport terminal you're actually standing in
Bilateral Air Services Agreement
The treaty that decides how many international flights an airline is actually allowed to run
CASK & RASK
The two numbers airlines actually use to judge whether a route makes money, instead of just looking at ticket price
Codeshare Agreements
Why a single flight can be sold under two different airline names at once
DGCA: India's Aviation Regulator
The body that decides whether an airline, an aircraft, or a pilot is actually safe to fly
Fifth Freedom Rights & Open Skies
The rare right that lets a foreign airline pick up passengers in India and fly them onward to a third country
GIFT City's Aircraft Leasing Hub
India's attempt to stop paying foreign lessors and start becoming one itself
Ground Handling Services
The unglamorous work between landing and takeoff that determines whether your flight actually leaves on time
Hub-and-Spoke vs Point-to-Point
Why some airlines route you through one big city to get anywhere, while others fly you directly wherever possible
India's Air Cargo Industry
Why an increasing share of what gets rushed to your door now arrives by plane, not just by truck
India's Business Jet Boom
Why corporate India is buying private aircraft faster than the country can actually build places to park them
India's Drone Industry & UAS Rules
How a hobbyist gadget became a regulated aviation category with its own airspace rules
India's Pilot Shortage
Why Indian airlines' massive aircraft order books create a problem that has nothing to do with aircraft at all
India's Record Aircraft Order Book
Why Indian airlines have collectively committed to buying more planes than almost any country's carriers ever have at once
Load Factor
The single number that tells you whether an airline's planes are flying full or flying empty
MRO: Maintenance, Repair and Overhaul
The unglamorous business keeping every aircraft in India's fast-growing fleet actually airworthy
Narrow-Body vs Wide-Body Aircraft
Why the single-aisle plane on your Mumbai-Delhi flight and the twin-aisle plane on your Mumbai-London flight are built for completely different jobs
Navi Mumbai International Airport
How Mumbai became a twin-airport city built to rival London and Paris
Runway Slots vs Parking Bays
Why an airline can win the right to land a flight and still have nowhere to actually park the plane
Sale-and-Leaseback in Aviation
How an airline can buy a brand-new plane and then immediately sell it, without ever losing the right to fly it
Slot Allocation
Why the exact minute your flight departs is one of an airport's scarcest, most fought-over resources
Sustainable Aviation Fuel (SAF)
Why airlines will soon have to put biofuel in the tank whether they want to or not
The Low-Cost Carrier Model
How flying got cheap: strip out everything not essential, then sell what's left efficiently
UDAN Scheme
How India got small-town flying to cost about the same as a train ticket
Wet Lease vs Dry Lease
The difference between renting a car with a driver, and renting just the car