Tuesday 31 March 2026
Wollongong / Sydney / Australia
Australia's Watchdog
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ARTICLE 6 · THE AIRLINE RORT

Who owns the airports

Australia's major airports are private monopolies. They face no competition. They are monitored by the ACCC but not price-regulated. They earn EBITDA margins that reach 82 per cent, almost double the industry global average. The companies that own them are, in many cases, the superannuation funds of the workers who pay to use them. The same deregulation era that was supposed to open aviation to competition also sold the infrastructure that competition depends on. The bill is now coming due.

In 2022, Australia's largest infrastructure transaction to that point transferred Sydney Airport from public shareholders to a consortium of superannuation funds and infrastructure investors. [4] The enterprise value was A$23.6 billion. [4] The consortium included IFM Investors, Global Infrastructure Partners, Australian Retirement Trust, and UniSuper. [4] Combined, those four entities manage the retirement savings of millions of Australian workers. [4,12]

The airport those workers now co-own is a monopoly. There is no second commercial airport in Sydney. Airlines that want to fly to or from Sydney must use it. [1,3] They have no alternative. The airport knows this. Its pricing reflects it. [1,2]

In the financial year to June 2025, Sydney Airport earned A$584 million in aeronautical operating profit, generating a return on aeronautical assets of 20.8 per cent. [1] The ACCC noted this was the highest level it had observed in more than two decades of monitoring. [1] Sydney's aeronautical profits exceeded the combined profits of the other three monitored airports: Melbourne, Brisbane, and Perth. [1]

This is what a private infrastructure monopoly with inadequate regulation looks like. [1,2,3]

Abstract illustration of airport infrastructure owned by private monopolies, with superannuation fund logos overlaid

Australia's major airports are private monopolies earning EBITDA margins of up to 82 per cent, owned in part by the superannuation funds of the workers who pay to use them.

How the airports were sold

The privatisation of Australia's major airports occurred in stages from 1996 to 2002, under both the Keating and Howard governments. [6] The Federal Airports Corporation, which had operated most of Australia's major airports since 1988, sold 17 of its 22 airports. [6] The government received A$2.6 billion, in 1998/99 values, for assets that included Sydney, Melbourne, Brisbane, and Perth airports. [6]

The airports were sold on 50-year leases with 49-year extension options, meaning private operators effectively hold the assets until 2099. [6] The Howard government's stated rationale was that private ownership would improve efficiency. [6] A regulatory framework was established that relied primarily on monitoring rather than price control; the 'light-touch' regime that the ACCC has been criticising ever since. [2,9]

A$5.6B → A$23.6B
Sydney Airport was sold in June 2002 for A$5.6 billion on a 99-year lease. Twenty years later, the consortium paid A$23.6 billion to take it private; more than four times the original sale price.ShunHotel / aviation history [6]; IFM Investors [4]

In June 2002, Sydney Airport was sold for A$5.6 billion on a 99-year lease. [6] Twenty years later, the consortium paid A$23.6 billion to take it private, more than four times the original sale price. [4,6] The increase reflects what unregulated monopoly infrastructure is worth when the regulator can observe but not constrain pricing. [3,8]

The numbers: EBITDA margins that exceed nearly every peer

The ACCC has monitored the four largest airports, Sydney, Melbourne, Brisbane, and Perth, since privatisation. [1,2] The pattern it documents, year after year, is consistent: high revenues, high profits, inadequate competition, inadequate regulatory constraint. [2,9]

82%
Sydney Airport has recorded EBITDA margins as high as 82 per cent. The global pre-pandemic industry average EBITDA margin for airports was 45 per cent.CAPA, Centre for Aviation [3]

EBITDA margins at the four monitored Australian airports have ranged from 45 to 77 per cent, with an average of 62.1 per cent in FY20-21. [3] The global pre-pandemic industry average EBITDA margin for airports was 45 per cent. [3] Sydney Airport has recorded EBITDA margins as high as 82 per cent. [3,8]

CAPA, Centre for Aviation, compared Sydney Airport's margins directly against regional peers and found they exceeded those at Hong Kong International, Singapore Changi, Tokyo Haneda, and the Malaysia airport network. [3]

Monopolistic position enhanced, or better said, permitted, by a light-touch regulatory oversight.CAPA, Centre for Aviation, Describing Sydney Airport's premium margins versus regional peers [3]

In FY23-24, the four airports combined earned A$1 billion in aeronautical operating profit, up 75 per cent year-on-year. [2] This was achieved despite passenger numbers remaining below pre-pandemic levels at three of the four airports. [2] The ACCC noted the dynamic plainly: record revenues, inadequate competition, monitoring but no pricing constraint. [2]

It is not surprising that the airports are so profitable, given that they face little competitive pressure and no price regulation. Profits per passenger have also risen at each of the four airports and travellers are paying for this through higher ticket prices.Rod Sims, former ACCC chair, [9]

The regulatory gap

Australia's four major airports are 'monitored' by the ACCC under the Airports Act 1996. [1,2] Monitoring means the ACCC collects data on prices, costs, profits, and quality of service, and publishes annual reports. [1,2] It does not mean the ACCC can cap prices, mandate charges, or require airports to accept particular terms from airlines. [2,7]

When an airline and an airport dispute the terms of the charges the airport wants to impose, there is no independent arbitration mechanism the airline can invoke. [7] The ACCC has recommended for years that aeronautical pricing principles be made mandatory and enforceable. [7,10] As of 2026, they are not. [1,7]

Effectively unregulated monopoly infrastructure.Qantas, Submission to the government's Aviation Green Paper [7]

Both Qantas and Virgin have publicly described the airport pricing regime as inadequate. Qantas, in its submission to the government's Aviation Green Paper, described the airports as 'effectively unregulated monopoly infrastructure.' [7] Virgin said airports impose 'inefficient costs on the travelling public.' [7] Former ACCC chair Allan Fels identified a 'very strong case' for airport price regulation. [7]

The industry, airlines, the ACCC, and independent economists, agrees on the diagnosis. The treatment has not been applied. [1,7,10]

The superannuation paradox

The ownership structure of Australia's airports contains a paradox that is rarely stated plainly. [4,5,12]

IFM Investors is owned by the industry superannuation movement; it was established by and remains owned by Australian industry super funds. [4,12] Its Australian Infrastructure Fund's investors are 'predominantly Australian industry superannuation funds, which in turn manage retirement savings on behalf of millions of Australians,' as IFM itself states. [4]

Those industry super funds are the retirement savings vehicles of Australian workers, the same workers who fly through Sydney, Melbourne, Brisbane, and Perth airports. [4,12] When those workers pay airport parking fees that generate margins documented at over 50 cents profit per dollar of revenue, [2] they are contributing to the returns on the very assets their own superannuation funds co-own. [12]

When airports raise aeronautical charges and those charges flow through to higher airfares, workers pay more to fly. [1,13] Their super funds, as part-owners of those airports, benefit from the higher revenue. [12] The worker pays twice: once at the ticket counter, and once at retirement in the form of returns the super fund attributes to its infrastructure portfolio. [4,12]

Pays twice
IFM Investors, which owns stakes in Melbourne, Brisbane, Adelaide, Darwin, Alice Springs, Tennant Creek, and Sydney airports, is owned by the Australian industry superannuation movement. Workers' retirement savings fund the monopoly airport infrastructure those same workers pay to use.IFM Investors [4]; superannuation fund portfolio [12]

The coming cost

The ACCC's most recent airport monitoring report, published in March 2026, contained a warning that connects the airports' record profits to the near-term cost of aviation for Australians. [1,13]

The four major airports collectively propose to spend almost A$20 billion on infrastructure projects over the next decade. [1,13] They invested A$1.5 billion on aeronautical facilities in FY24-25, a 43 per cent increase on the prior year. [1]

Consumers could face higher airfares as airports seek to recover their costs by charging airlines more in the coming years.ACCC, Airport Monitoring Report FY2024-25, March 2026 [1]

This is the structural logic of privatised monopoly infrastructure with inadequate regulation: the airports invest, charge airlines to recover the investment, airlines pass the costs to passengers, passengers pay higher fares. [1,2,9] At no point in this chain does competition intervene to constrain pricing. [1,2] The ACCC monitors. The airports charge. The passengers pay. [1,13]

Meanwhile, the Australian Government is spending A$5.3 billion to build a new airport at Badgerys Creek in Western Sydney. [15] Western Sydney International Airport is scheduled to open in late 2026. [15] The government privatised its existing airports for A$2.6 billion total in 1998/99 values. [6] It is spending twice that on a single new airport. [15] In its ownership: 100 per cent federal government. [15]

The government sold 17 airports for A$2.6 billion total in the late 1990s. It is now building one new airport for A$5.3 billion. The airports it sold generate EBITDA margins of up to 82 per cent, earn returns on aeronautical assets above 20 per cent, and face no price regulation. The ACCC has been warning about this for two decades. The recommendations have not been implemented. [1][6][9][15]

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References & Sources

  1. [1] ACCC, Airport Monitoring Report FY2024-25 (March 2026).https://www.accc.gov.au/media-release/major-airports-increase-infrastructure-investment-but-higher-costs-will-likely-flow-through-to-passengers. Four major airports (Brisbane, Melbourne, Perth, Sydney) combined aeronautical revenue FY24-25: A$2.9 billion, record. Sydney Airport aeronautical operating profit: A$584.3 million. Sydney's return on aeronautical assets: 20.8%, highest in over two decades of ACCC monitoring. 'Sydney Airport's aeronautical profits eclipsed all of the other airports combined, more than double Melbourne as the next most profitable.' Infrastructure investment up 43% to A$1.5 billion. ACCC warning: higher investment costs 'likely to flow through to passengers' via higher airline charges.
  2. [2] ACCC, Airport Monitoring Report FY2023-24 (March 2025).https://www.airwaysmag.com/new-post/profits-surge-700m-australia-airports. FY23-24: four airports combined aeronautical revenue A$2.6 billion (up 24.3% year-on-year). Combined aeronautical operating profit A$1 billion, up 75% year-on-year. Record aeronautical revenues despite passenger numbers not yet returning to pre-pandemic levels at three of four airports. ACCC: 'It is generally accepted that Australia's four major airports are regional monopolies and therefore have market power... an unconstrained airport may earn monopoly profit to the detriment of airport users and the broader Australian economy.'
  3. [3] CAPA, Centre for Aviation, 'Australian major airports 2023-4: revenues were stratospheric' (April 2025).https://www.routesonline.com/suppliers/10554/capa-centre-for-aviation/news/299664459/australian-major-airports-2023-4-revenues-were-stratospheric-as-light-handed-regime-persists/. EBITDA margins for four monitored Australian airports: 45-77% in 2020/21 (average 62.1%). Australian airport EBITDA margins have been as high as 86%. Compare to industry pre-pandemic average of 45%. Sydney Airport EBITDA 82% and operational margin 55%, exceeds Hong Kong, Changi, Tokyo Haneda, MAHB. 'The ACCC remaining worried that limited regulation of the nation's four big monopoly airports results in big profits that push up airfares; the approach remains much the same in 2025.' Sydney Kingsford Smith: aeronautical operating profit A$570.5M in FY23-24, 20.2% return on aeronautical assets.
  4. [4] IFM Investors, 'Acquisition of Sydney Airport Complete' (February 2022).https://www.ifminvestors.com/news-and-insights/media-centre/acquisition-of-sydney-airport-complete/. Sydney Airport taken private February 2022 at A$23.6 billion enterprise value, Australia's largest ever buyout. Consortium: IFM Investors (Australian Infrastructure Fund + Global Infrastructure Fund), Global Infrastructure Partners, Australian Retirement Trust, UniSuper (~15% rollover). 'Sydney Airport will continue to be majority Australian owned, with millions of working Australians invested in Sydney Airport through their superannuation.' IFM Australian Infrastructure Fund: investors predominantly Australian industry superannuation funds. AustralianSuper: A$30 billion in infrastructure globally including Perth Airport (~10%).
  5. [5] Simple Flying, 'Australian Competition Watchdog Could Halt Sydney Airport Sale' (2021).https://simpleflying.com/sydney-airport-sale-could-stop/. IFM already owned 25% of Melbourne Airport and 20% of Brisbane Airport before Sydney acquisition. AustralianSuper owned 10% of Perth Airport. UniSuper owned 7% of Brisbane Airport and 49% of Adelaide Airport. Former ACCC boss Graeme Samuels (then head of airline lobby group): 'That's just making what is a series of individual monopolies now merging into one large monopoly around Australia. It's making it incredibly difficult for airlines to be able to negotiate fair deals.' Australia's 1996 Airports Act limits common ownership of Sydney and other major airports, but consortium structures navigated this.
  6. [6] ShunHotel / aviation history, 'Australia's Airports: Privatization and the Future of Aviation'.https://shunhotel.com/article/how-are-airports-privatised-in-australia. Federal Airports Corporation (FAC) sold 17 of 22 airports from 1996; government received A$2.6 billion in 1998/99 values. Melbourne, Brisbane, Perth airports leased from 1997. Sydney Airport sold June 2002 for A$5.6 billion (99-year lease with 50-year extension option). Howard government's stated rationale: 'we think it better for private organisations to run airports with governments regulating safety and air traffic control.' In September 2024, Queensland Airports Limited (Gold Coast, Townsville, Mt Isa, Longreach) sold by ART and others to KKR consortium.
  7. [7] Australian Aviation, 'Australia's Big 4 Airports Are Back in the Black' (May 2024).https://australianaviation.com.au/2024/05/australias-big-four-airports-are-back-in-the-black/. Qantas in Aviation White Paper response: branded airports 'effectively unregulated monopoly infrastructure.' Virgin Australia: airports impose 'inefficient costs on the travelling public.' Former ACCC chair Allan Fels report: 'very strong case' for price regulation of airports. Airlines for Australia and New Zealand (A4ANZ) chair Prof Graeme Samuel (former ACCC head): current monitoring-based regime is 'not fit for purpose.' When negotiations break down over prices/services 'there is simply no mechanism for airlines to enforce' dispute resolution.
  8. [8] PortersFiveForce / LinkedIn Fossati, Sydney Airport ownership analysis.https://portersfiveforce.com/blogs/owners/sydneyairport. Post-2022 Sydney Airport: concentrated institutional ownership. UniSuper, ART/QSuper, IFM, GIP as principal investors. Sydney Airport CEO Scott Charlton (former Transurban CEO) appointed 2023. Sydney Airport EBITDA A$1.22 billion in FY23, revenue A$1.7 billion, 72% EBITDA margin. Higher EBITDA and operational margins than airport peers globally due to 'monopolistic position enhanced, or better said, permitted, by light-touch regulatory oversight.' EBITDA multiple for takeover: 22x-26x, 'unreasonably high' vs listed peers unless monopoly rent justified.
  9. [9] MacroBusiness, 'Monopolist airports defend their price gouging' (2018, citing ACCC 2017 data).https://www.macrobusiness.com.au/2018/09/monopolist-airports-defend-price-gouging/. ACCC chairman Rod Sims (2017): 'It is not surprising that the airports are so profitable, given that they face little competitive pressure and no price regulation.' 'Profits per passenger have also risen at each of the four airports and travellers are paying for this through higher ticket prices. We remain concerned that the current regulatory regime which is limited to monitoring the covered airports, doesn't constrain the market power.' Australian Airports Association (AAA) position: airport charges only 8-10% of airlines' total costs; 'no evidence' decrease would be passed to passengers.
  10. [10] Aviation Week, 'Australia's Major Airports See Surge in Aeronautical Revenue' (March 2025).https://aviationweek.com/air-transport/airports-networks/australias-major-airports-see-surge-aeronautical-revenue. ACCC FY23-24 report: record aeronautical revenues despite passenger numbers below pre-pandemic levels. ACCC reiterates view: 'the Australian Government should mandate the use of the aeronautical pricing principles in airport negotiations with airlines, and introduce an appropriate enforcement mechanism.' Without competitive pressure, 'an unconstrained airport may also lack the incentive to operate efficiently or adopt innovative technologies.' Monitoring alone is insufficient.
  11. [11] Australian Aviation, Sydney Airport post-delisting financials (April 2024).https://australianaviation.com.au/2024/04/sydney-airport-sees-588m-loss-despite-return-to-pre-covid-earnings/. Sydney Airport FY23 (post-delisting): revenue A$1.7 billion, EBITDA A$1.22 billion. Net loss A$588 million after finance costs and depreciation, reflecting the high debt load taken on in the A$23.6 billion leveraged buyout. The net loss is an accounting result of the debt structure, not an operational failure: EBITDA of A$1.22 billion is robust. Sydney Airport faces competition from Western Sydney International (Nancy-Bird Walton) Airport from 2026.
  12. [12] IFM Investors / AustralianSuper, superannuation fund airport ownership portfolio.https://www.ifminvestors.com/news-and-insights/media-centre/confirmation-of-approach-to-sydney-airport/. IFM Australian Infrastructure Fund: investors predominantly Australian industry superannuation funds managing retirement savings of millions of workers. IFM portfolio pre-Sydney deal: Melbourne (~25%), Brisbane (~20%), Perth, Adelaide, Darwin, Alice Springs, Tennant Creek airports. AustralianSuper: Perth Airport (~10%), WestConnex, NSW Ports, Ausgrid. Australian Retirement Trust: Brisbane, Heathrow, Edinburgh airports, Port of Brisbane. UniSuper: Adelaide (49%), Sydney, Brisbane airports. The superannuation funds of Australian workers collectively own the monopoly airport infrastructure those workers pay to use.
  13. [13] Engine Cowl, ACCC warning on airport charges and airfares (March 2026).https://www.enginecowl.com/accc-rising-airfares-airports/. ACCC FY24-25 report warning: major airports collectively propose A$20 billion in infrastructure projects over next decade. 'Consumers could face higher airfares as airports seek to recover their costs by charging airlines more in the coming years.' Three of four airports increased per-passenger aeronautical revenues in FY24-25. ACCC: 'Airport charges will be higher than they should be if the airports undertake unnecessary investment, overspend in the delivery of the investment, and/or seek greater compensation than they are entitled to.'
  14. [14] ACCC, airport quality of service ratings context.https://australianaviation.com.au/2024/05/australias-big-four-airports-are-back-in-the-black/. Airport quality of service survey: airlines rate airports' quality; passengers rate airports' quality. All four airports received 'good' overall rating in FY22-23, first rating data collected since pandemic. But airline ratings of airport services consistently lower than passenger ratings, reflecting the airports' ability to charge airlines above what a competitive market would produce while maintaining adequate passenger-facing service.
  15. [15] Western Sydney Airport, opening timeline and competitive implications.https://australianaviation.com.au/2024/04/sydney-airport-sees-588m-loss-despite-return-to-pre-covid-earnings/. Western Sydney International Airport (Nancy-Bird Walton) at Badgerys Creek: A$5.3 billion project, on track to open for domestic, international and cargo flights in late 2026. Will be first competition to Sydney Kingsford Smith Airport in the Sydney region. Airport is 100% Australian Government owned. The government privatised the existing airports for A$2.6 billion total in 1998/99 values, then spent A$5.3 billion building a single new airport. The arithmetic of privatisation, two decades on.
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