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Aviation

Airlines, airports and the economics of flight

Everything about this industry

From a slot at a congested airport to a seat at 35,000 feet

Foundation

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

01Fleet & routeplanningAirlines acquire aircraft(purchase, dry lease or wet lease)and plan routes within slot andbilateral traffic rightsconstraints.02OperationsFlying scheduled services, fuelledoverwhelmingly by ATF, alreadycovered on this site as a distinctoil-gas product.03Maintenance (MRO)Keeping the fleet airworthythrough mandatory, non-deferrablemaintenance schedules.

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.

Full-service network carriers

Air India, offering a broader international network and premium cabin options.

Low-cost carriers (LCCs)

IndiGo, India's largest carrier by far, built around point-to-point efficiency and cost discipline.

Fast-growing challengers

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.

Airport slotMumbai / Delhi (congested airports)A scarce, historically-allocated take-off/landing time
AircraftIndiGo / Air India / Akasa fleetsOwned, dry-leased or wet-leased
MRO facilityDomestic & overseas providersKeeps the fleet legally airworthy
International traffic rightsGovernment-negotiated BASACaps how much international capacity any airline can actually fly
Numbers
Global size
N/A (fragmented by country/region)

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.

2025
India size
~$14.78 billion (2025)

Projected to reach ~$28.96 billion by 2031. UDAN has operationalised 625 routes and 85 airports as of 2025.

2025 estimate, industry aggregation

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.

Projected fleet size by 2030
~1,250 aircraftCombined fleet, 2030E
  • 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.

Routes operationalised under UDAN, 2016 to 2026
0 routes200 routes400 routes600 routes800 routes20162026625 routes

Raw materials

Aviation Turbine Fuel (ATF)

The dominant operating cost, already covered in depth as a distinct oil-gas product on this site.

Aircraft

Sourced from a global duopoly of manufacturers (Boeing and Airbus), acquired via purchase or lease.

MRO parts & components

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.

Rs 38,350 cr vs Rs 53,392 cr
India MRO market, 2025 vs 2030E
~50% over FY24
FY26 domestic MRO revenue growth
625 routes, 85 airports
UDAN routes/airports operationalised (2025)
Rs 28,840 crore
Modified UDAN outlay (2026-2036)
India domestic MRO market size, 2025 to 2030E (Rs crore)
35000 cr40000 cr45000 cr50000 cr55000 cr20252030E53392 cr

10 years ago vs now

A decade ago

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.

Now

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.

Business

The five forces shaping this industry

Supplier powerHigh

The Boeing-Airbus aircraft duopoly, and ATF's crude-linked pricing outside any airline's control, both give suppliers significant leverage.

Buyer powerModerate

Price-sensitive leisure travellers have real switching power on price-transparent routes; corporate travel buyers hold more negotiating leverage on volume.

Threat of substitutesLow-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 entryHigh

Capital intensity, slot access at congested airports and regulatory certification all keep the field of credible new entrants narrow.

Rivalry among existing playersHigh

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.

aircraft
IndiGo600
Air India Group500
Akasa Air150
Players & context

Challenges

  1. 01

    ATF's outside-GST tax treatment continues to be a major, unresolved cost burden airlines have lobbied against for years without success.

  2. 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.

  3. 03

    Global aircraft delivery delays from Boeing and Airbus have forced Indian carriers toward more expensive wet leasing to bridge capacity gaps.

  4. 04

    Bilateral Air Services Agreement caps continue to constrain international expansion to high-demand markets, particularly the Gulf, independent of airline ambition.

  5. 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

Full-service & network carriers
  • Air India (Tata Group)Unlisted
    India's flagship full-service carrier, targeting 500 aircraft by 2030
Low-cost & challenger carriers
  • IndiGoListed
    India's largest carrier by far, targeting 600 aircraft by 2030
  • Akasa AirUnlisted
    Fastest-growing carrier in 2025-26, 40th aircraft inducted 2026
MRO
  • Air India Engineering Services / GMR AeroTech and other domestic MRO providersUnlisted
    Growing domestic maintenance capacity as the fleet expands

How the major players compare

CompanyStageScaleListed
IndiGoLow-cost carrierIndia's largest airline, targeting 600 aircraft by 2030Yes
Air India (Tata Group)Full-service carrierFlagship carrier, targeting 500 aircraft by 2030No
Akasa AirChallenger carrierFastest-growing carrier, targeting 226 aircraft by 2030No

Government policy, last 15 years

2016
UDAN (Regional Connectivity Scheme)

Capped fares on regional routes and subsidised the gap through Viability Gap Funding and ATF tax concessions.

2020-2022
Air India privatisation & Vistara-Air India merger

Returned Air India to the Tata Group and consolidated it with Vistara, reshaping the full-service carrier landscape.

2022
Akasa Air launched

India's newest major carrier began operations, rapidly scaling fleet and network since.

2025
MRO tax reforms

Continued policy changes making domestic MRO more tax-competitive against sending maintenance work overseas.

2026-2036
Modified UDAN

A further decade of committed funding, Rs 28,840 crore, extending regional connectivity support.

India & horizon

Recent developments

2026
Akasa Air inducts its 40th aircraft

Continuing rapid fleet growth, with a target of 226 aircraft by 2030 and 30-40% annual growth planned over five years.

Mid-2026
Akasa outgrows IndiGo and Air India on capacity growth

Both established carriers have been trimming capacity even as Akasa expands aggressively, an unusual reversal of typical market dynamics.

FY2026
Domestic MRO revenue grows ~50% over FY2024

Crossing Rs 4,500 crore in fiscal 2026, reflecting both fleet growth and improved tax competitiveness for domestic maintenance.

2026
Modified UDAN approved with Rs 28,840 crore outlay

A decade-long (2026-2036) commitment to continued regional connectivity funding.

What could disrupt this

ATF price volatility

A sustained global crude price spike would directly and immediately hit every Indian carrier's largest cost line simultaneously.

Aircraft delivery delays persisting

Continued Boeing/Airbus backlogs could force costlier, prolonged reliance on wet leasing across the industry.

Capacity discipline breakdown

If Akasa's rapid growth triggers an aggressive capacity and price war, industry-wide profitability could suffer even as passenger volumes grow.

Slot and airspace congestion

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

  1. 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?

  2. 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?

  3. 03

    Will ATF finally move under GST, meaningfully changing the industry's dominant cost structure, or does this remain a persistent, unresolved lobbying point?

  4. 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

#406

A, B, C & D Checks

The escalating maintenance inspections every aircraft goes through, from a quick daily look-over to a total teardown

intermediate
#400

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

intermediate
#389

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

beginner
#411

Airline Ancillary Revenue

Why a budget airline's real profit often comes from everything except the base ticket price

beginner
#412

Airport Cargo Terminal Infrastructure

The often-overlooked warehouse-like buildings that actually make air freight possible

intermediate
#402

Airport User Development Fee (UDF)

The charge quietly built into your ticket price that funds the airport terminal you're actually standing in

beginner
#268

Bilateral Air Services Agreement

The treaty that decides how many international flights an airline is actually allowed to run

advanced
#395

CASK & RASK

The two numbers airlines actually use to judge whether a route makes money, instead of just looking at ticket price

intermediate
#396

Codeshare Agreements

Why a single flight can be sold under two different airline names at once

beginner
#393

DGCA: India's Aviation Regulator

The body that decides whether an airline, an aircraft, or a pilot is actually safe to fly

beginner
#403

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

advanced
#391

GIFT City's Aircraft Leasing Hub

India's attempt to stop paying foreign lessors and start becoming one itself

intermediate
#401

Ground Handling Services

The unglamorous work between landing and takeoff that determines whether your flight actually leaves on time

beginner
#413

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

beginner
#398

India's Air Cargo Industry

Why an increasing share of what gets rushed to your door now arrives by plane, not just by truck

beginner
#399

India's Business Jet Boom

Why corporate India is buying private aircraft faster than the country can actually build places to park them

beginner
#409

India's Drone Industry & UAS Rules

How a hobbyist gadget became a regulated aviation category with its own airspace rules

intermediate
#407

India's Pilot Shortage

Why Indian airlines' massive aircraft order books create a problem that has nothing to do with aircraft at all

intermediate
#390

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

beginner
#394

Load Factor

The single number that tells you whether an airline's planes are flying full or flying empty

beginner
#267

MRO: Maintenance, Repair and Overhaul

The unglamorous business keeping every aircraft in India's fast-growing fleet actually airworthy

intermediate
#408

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

beginner
#392

Navi Mumbai International Airport

How Mumbai became a twin-airport city built to rival London and Paris

beginner
#410

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

advanced
#404

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

intermediate
#266

Slot Allocation

Why the exact minute your flight departs is one of an airport's scarcest, most fought-over resources

advanced
#397

Sustainable Aviation Fuel (SAF)

Why airlines will soon have to put biofuel in the tank whether they want to or not

intermediate
#405

The Low-Cost Carrier Model

How flying got cheap: strip out everything not essential, then sell what's left efficiently

beginner
#264

UDAN Scheme

How India got small-town flying to cost about the same as a train ticket

beginner
#265

Wet Lease vs Dry Lease

The difference between renting a car with a driver, and renting just the car

intermediate