Sydney Kingsford Smith Airport (IATA: SYD, ICAO: YSSY) — colloquially Mascot Airport, Kingsford Smith Airport, or Sydney Airport — is an international airport serving Sydney, New South Wales, Australia, 8 km (5.0 mi) south of the Sydney central business district, in the suburb of Mascot. Sydney Airport is the busiest airport in Oceania. It is the primary airport serving Sydney and is a primary hub for Qantas, as well as a secondary hub for Virgin Australia and Jetstar.

Situated next to Botany Bay on 907 hectares (2,241 acres) of land with three runways, Sydney Airport is one of the world's longest continuously operated commercial airports and is the busiest airport in Australia, handling 42.6 million passengers and 348,904 aircraft movements in 2016–17. It was the 48th busiest airport in the world in 2022. Currently, 46 domestic and 43 international destinations are served to Sydney directly. In 2018, the airport was rated in the top five worldwide for airports handling 40–50 million passengers annually and was overall voted the 20th best airport in the world at the Skytrax World Airport Awards.

The airport is owned by Sydney Airport Corporation Limited.

The land used for the airport had been a bullock paddock, with a lot of the area around Mascot being swampy. Flights had been taking off from at least 1911 from these fields, with aviators using other Sydney locations like Anderson Park and Neutral Bay for a few years prior.

Nigel Love, who had been a pilot in the First World War, was interested in establishing the nation's first aircraft manufacturing company. This idea would require him to establish a factory and an aerodrome close to the city. A real estate office in Sydney told him of some land owned by the Kensington Race Club that was being kept as a hedge against its losing its government-owned site at Randwick. It had been used by a local abattoir which was closing down, to graze sheep and cattle. This land appealed to Love as the surface was perfectly flat and was covered with a pasture of buffalo grass. The grass had been grazed so evenly by the sheep and cattle that it required little to make it serviceable for aircraft. In addition, the approaches on all four sides had no obstructions, it was bounded by Ascot Racecourse, gardens, a river, and Botany Bay.

Love established the airfield at Mascot as a private concern, leasing 80 hectares (200 acres) from the Kensington Race Club for three years. It initially had a small canvas structure but was later equipped with an imported Richards hangar. The first flight from Mascot was in November 1919 when Love carried freelance movie photographer Billy Marshall up in an Avro. Sydney Airport was declared an aerodrome and officially opened in January 1920. The official opening flight took place on 9 January 1920, also performed by Love.

In 1921, the Commonwealth Government purchased 65 hectares (161 acres) in Mascot for the purpose of creating a public airfield. In 1923, when Love's three-year lease expired, the Mascot land was compulsorily acquired by the Commonwealth Government from the racing club. The first regular flights began in 1924.

In 1933, the first gravel runways were built. On 14 August 1936, the airport was renamed Sydney (Kingsford Smith) Airport in honour of pioneering Australian aviator Sir Charles Kingsford Smith. In 1940, the Department of Civil Aviation constructed an administrative and terminal building in the eastern part of the aerodrome, with a control tower cab at the top floor. The building is now part of Terminal 3 since 1999, but the control tower cab has already been removed.

By 1949, the airport had three runways – the 1,085-metre (3,560 ft) 11/29, the 1,190-metre (3,904 ft) 16/34, and the 1,787-metre (5,863 ft) 04/22. The Sydenham to Botany railway line crossed runway 04/22 approximately 150 metres (490 ft) from the northern end and was protected by special safe working facilities.

In the late 1940s (c. 1947–1949), a temporary overseas passenger (i.e. international) terminal was constructed. The original 1940 terminal then became the terminal building for the Trans Australia Airlines (TAA), the government-owned domestic airline, and the building also became known as the TAA terminal building. The temporary overseas passenger terminal was later replaced by a newer one in 1954, located just north of the 1940 terminal building.

During the year 1950, the airport handled at least 793,956 passengers and was ranked among the busiest airports in the world.

Between 1947 and 1953, the Cooks River was diverted away around the western side of the airport and other small streams were filled. This allowed the construction of two new paved runways to replace the three gravel runways. The first paved runway to be constructed was 07/25, completed in 1953–1954. Subsequently, the next paved runway to be constructed was 16/34 (now 16R/34L) which replaced the parallel gravel runway 16/34. Both runways were constructed south of the gravel runways. At the same time, on 2 November 1953, a new air traffic control tower with an integrated fire station was constructed northeast of where the two runways intersect, replacing the control tower on the 1940 terminal building. The tower was demolished in 2005.

The new runway 16/34 was later extended southwards into Botany Bay over General Holmes Drive in 1968 to accommodate long-haul international jets, and then extended again to its current length in 1972. Since then, the east–west 07/25 runway was 2,500 m (8,300 ft) long; and the north–south 16/34 runway was one of the longest runways in the southern hemisphere.

Up to the early 1960s, the majority of Sydneysiders referred to the airport as Mascot. Jet aircraft started to arrive in July 1959, with the introduction of Qantas' Boeing 707-138. By the 1960s, the need for a new international terminal had become apparent. In the late 1940s and early 1950s, a terminal block for both international and domestic flights was proposed to be at the southeast portion of the airport near General Holmes Drive, but the proposal never eventuated. Work commenced on the construction of the new terminal in late 1966. Much of the new terminal was designed by Paynter and Dixon Industries with Costain appointed lead contractor. The new terminal was officially opened on 3 May 1970, by Queen Elizabeth II. The first Boeing 747 "Jumbo Jet" at the airport, Pan Am's Clipper Flying Cloud (N734PA), arrived on 4 October 1970.

Meanwhile, the 1940 TAA domestic terminal was expanded and modernised in 1962, with departures separated from arrivals along with other upgrades. The terminal was replaced by a new TAA terminal in 1974, constructed on the site of the old international terminal building after the new international terminal opened four years prior. The new terminal was located directly north and adjacent to the original TAA terminal. The 1940 terminal was then taken over by East-West Airlines.

Upgrades and expansion of the Ansett terminal (now Terminal 2) also began in 1974.

Since the international terminal's original completion, it has undergone a few expansions. The international terminal was first expanded in 1992 with the construction of Pier C in the south.

The limitations of having only two runways that crossed each other had become apparent and governments grappled with Sydney's airport capacity for decades. Eventually, the controversial decision to build a third runway was made. The third runway was parallel to the existing runway 16/34, entirely on reclaimed land from Botany Bay. A proposed new airport on the outskirts of Sydney was shelved in 2004, before being re-examined in 2009–2012 following reports that Kingsford Smith airport will not be able to cope by 2030. The "third runway", which the Commonwealth government commenced development of in 1989 and completed in 1994, remained controversial because of increased aircraft movements, especially over inner suburbs. In 1995 the No Aircraft Noise party was formed to contest the 1995 New South Wales state election. The party did not win a seat in parliament but came close in the electorate of Marrickville. It also contested the 1996 Australian federal election.

In 1995, the Australian Parliament passed the Sydney Airport Curfew Act 1995, which limits the operating hours of the airport. This was done in an effort to reduce airport noise over residential areas and thereby curb complaints. The curfew prevents aircraft from taking off or landing between the hours of 11 pm and 6 am. A limited number of scheduled and approved take-offs and landings are permitted respectively in the "shoulder periods" of 11 pm to midnight and 5 am to 6 am. The Act does not stop all aircraft movements overnight but limits noise by restricting the types of aircraft that can operate, the runways they can use and the number of flights allowed. During extreme weather, flights are often delayed and it is often the case that people on late flights are unable to travel on a given day. As of 2009, fines for violating curfew have been levied against four airlines, with a maximum fine of A$550,000 applicable. In addition to the curfew, Sydney Airport also has a cap of 80 aircraft movements per hour which cannot be exceeded, leading to increased delays during peak hours.

In 1998, the Federal Government agreed to separate Sydney Airport from the Federal Airports Corporation and to incorporate it as Sydney Airport Corporation. David Mortimer was appointed as Chair and Tony Stuart as CEO. Its mandate was to successfully redevelop the airport as the gateway for the Sydney 2000 Olympics, support the growth of new airlines such as Virgin and Emirates, and prepare it for a successful $3 billion-plus privatisation. In 2001 Sydney Airport was awarded World's Best Airport. In preparation for privatisation the airport argued successfully for a new regulatory regime.

All three terminals were upgraded prior to the 2000 Summer Olympics which was to be held in Sydney.

In 2002, the Commonwealth Government sold Sydney Airport Corporation (SAC), to Southern Cross Airports Corporation Holdings for $5.4 billion. 83 percent of SAC is owned by MAp Airports International Limited, a subsidiary of Macquarie Group, Sydney Airport Intervest GmbH owns 12 percent and Ontario Teachers' Australia Trust owns 5 percent. SACL holds a 99-year lease on the airport which remains Crown land and as such is categorised as a Leased Federal Airport.

In 2005, a planned expansion of the airport was announced, including the construction of a multi-level car park, and the expansion of both international and domestic terminals. The expansion was planned to stretch over twenty years (2005–25). These expansions—and other plans and policies by Macquarie Bank for airport operations were seen as controversial, as they were performed without the legal oversight of local councils, which usually act as the local planning authority for such developments. As of April 2006, some of the proposed development has been scaled back.

The international terminal underwent a A$500,000,000 renovation that was completed in mid-2010. The upgrade includes a new baggage system, an extra 7,300 m (78,577 sq ft) of space for shops and passenger waiting areas, expansion of the transit zone, and other improvements.

In March 2010, the Australian Competition & Consumer Commission released a report sharply critical of price gouging at Sydney airport, ranking it fifth out of five airports. The report noted Sydney Airport recorded the highest average prices at $13.63 per passenger, compared to the lowest at $7.96 at Melbourne Airport, while the price of short-term parking had almost doubled in the 2008–09 financial year, from $28 to $50 for four hours. This amounts to the highest profit margins on aeronautical services and very high profit margins on car parking fees. The report also accused the airport of abusing its monopoly power.

This section needs to be updated. Please help update this article to reflect recent events or newly available information. (April 2020)

In December 2011, Sydney Airport announced a proposal to divide the airport into two airline-alliance-based precincts; integrating international, domestic, and regional services under one roof by 2019. The current domestic Terminal 2 and Terminal 3 would be used by Qantas, Jetstar, and members of the Oneworld airline alliance while today's international Terminal 1 would be used by Virgin Australia and its international partners. Other international airlines would continue to operate from T1. In September 2012, Sydney Airport Managing Director and CEO Kerrie Mather announced the airport had abandoned the proposal to create alliance-based terminals in favour of terminals "based around specific airline requirements and (passenger) transfer flows". She stated the plan was to minimise the number of passengers transferring between terminals.

In June 2013, the airport released a draft version of its 2033 Master Plan, which proposes operating domestic and international flights from the same terminals using 'swing gates', along with upgrading Terminal 3 (currently the Qantas domestic terminal) to accommodate the Airbus A380. On 17 February 2014, the Australian Government approved the Master Plan, which outlines the airport's plans to cater to the forecast demand of 74 million passengers in 2033. The plan includes Sydney Airport's first-ever integrated ground transport plan.

On 27 August 2018, the Sydney Airport Master Plan 2039 was announced. The Sydney Airport Masterplan 2039 is a strategic plan that outlines the long-term vision for the development of Sydney Airport. The airport expects international travellers passing through its terminals to double over the next two decades and underpin an expected 50 per cent increase in passenger numbers by 2039. The plan aims to minimise traffic congestion on ground transportation.

Runway 07/25 is used mainly by lighter aircraft but is used by all aircraft including Airbus A380s when conditions require. Runway 16R/34L is presently the longest operational runway in Australia, with a paved length of 4,400 m (14,300 ft) and 3,920 m (12,850 ft) between the zebra thresholds. Runway 16L/34R is mainly used by domestic aircraft and large aircraft up to the size of B767/A330/B787/B772/A359, but is used by larger aircraft such as B77L/B773/B77W/B744/A340/A35K/MD11 when no other runway is available.

The present Sydney Airport control tower (No. 5) is the fifth air traffic control tower at the airport. It is also heritage-listed since 2016. The tower occupies a central position in the airport, located northeast to where General Holmes Drive goes under the main Runway 16R/34L. It began construction in 1993 in conjunction with the construction of parallel Runway 16L/34R, and was commissioned on 6 January 1996.

The control tower replaces the fourth control tower (No. 4) built in 1972, located at the mouth of Cooks River and south of General Holmes Drive. As of 2021, the control tower complex remains standing and is used by Airservices Australia as its Traffic Control Unit to manage planes within a 100 kilometres (62 mi) radius from Sydney. However, the Traffic Control Unit was slated to be moved to Melbourne and the control tower complex was slated for demolition.

Sydney Airport has three passenger terminals. The International Terminal (Terminal 1) is separated from the other two domestic terminals (Terminals 2 & 3) by runway 16R/34L; therefore, connecting passengers need to allow for longer transfer times ranging from 30 minutes to an hour or more.

The existing terminal numbering system (Terminals 1 to 3) was adopted on 24 September 2002.

Terminal 1 is also known as the International Terminal and serves all international flights. It is located in the airport's northwestern sector. It was opened on 3 May 1970, replacing the old Overseas Passenger Terminal (which was located where Terminal 3 stands now), and has been greatly expanded since then. The first extension in 1992 opened Pier C to the south with nine new gates, increasing the number of gates from 17 to 26. The original piers that opened in 1970 also became known as Pier B. The second extension was undertaken between 1997 and 2000 before the 2000 Summer Olympics, including ten new aircraft parking positions and new integrated baggage handling system. A third $500 million redevelopment was completed in 2010, by which the shopping complex was expanded, outbound customs operations were centralised and the floor space of the terminal increased to 254,000 square metres (2,730,000 sq ft). Further renovations began in 2015 with a reconfiguration and decluttering of outbound and inbound duty-free areas, an extension of the airside dining areas, and the installation of Australian Border Force outbound immigration SmartGates. These works were completed in 2016.

The terminal has 25 gates served by aerobridges, thirteen of which are in Pier B (numbered 8–10, 24–25 and 30–37), and twelve in Pier C (numbered 50–51, 53–61 and 63). Prior to the 2010 upgrade, there also used to be gates 20, 22 and 23 in Pier B. Pier B is used by Qantas, all Oneworld members, and all SkyTeam members (except Delta Air Lines). Pier C is used by Virgin Australia and its partners (including Delta) as well as all Star Alliance members. There are also a number of remote bays which are heavily utilised during peak periods and for parking idle aircraft during the day. As of 2024, there is currently no Pier A, but Pier A would be the name for a northern expansion if it were to happen in the future.

The terminal building is split into three levels, one each for arrivals, departures, and airline offices. The departure level has 20 rows of check-in desks each with 10 single desks making a total of 200 check-in desks. The terminal hosts eight airline lounges: two for Qantas, and one each for The House, Air New Zealand, Singapore Airlines, Emirates, American Express, and SkyTeam.

Terminal 2, located in the airport's northeastern section, is a domestic terminal and the former home of Ansett Australia's domestic operations. It features 20 parking bays served by aerobridges and several remote bays for regional aircraft. It serves FlyPelican, Jetstar, Link Airways, Rex Airlines, and Virgin Australia. There are lounges for Rex Airlines and Virgin Australia.

The terminal was first opened in 1939–1940 as the terminal building for Australian National Airways (ANA). It was expanded in July 1952. The ANA terminal was included in the sale of ANA to Ansett in 1957. It was upgraded and modernised in 1974–1975 with a new baggage handling system, moving walkways, air-conditioned departure lounges and aerobridges. It also had a covered bridge from the domestic car park to the terminal.

During the 1990s, the terminal was upgraded and redevelopment two times. The first redevelopment was announced in 1989, and included a new western concourse, new boarding lounges at the existing concourse and new aircraft-parking positions. This was to create additional gates for other airlines, required as part of the new 30-year lease for the terminal that Ansett had signed with the federal government. The second redevelopment completed before the 2000 Summer Olympic Games for A$170 million.

After Ansett's collapse in 2002, Ansett's administrators sold the terminal lease to the airport for A$200 million, and the terminal became open to all airline operators, including Qantas's regional carriers (QantasLink) and Virgin Blue (now Virgin Australia). QantasLink moved from Terminal 2 to Terminal 3 in 2013.

Terminal 3 is a domestic terminal serving Qantas as well as QantasLink flights, which moved from Terminal 2 to Terminal 3 on 16 August 2013. It was initially home to Trans Australia Airlines (TAA, later named Australian Airlines), with Australian Airlines signing a 30 year lease for the terminal with the federal government in 1989. Since the merger of Australian Airlines and Qantas in 1994, the terminal exclusively serves under the Qantas brand. In 2015, Qantas sold its lease of Terminal 3, which was due to continue until 2019, back to Sydney Airport for $535 million. This means Sydney Airport resumes operational responsibility of the terminal, including the lucrative retail areas. Qantas would retain priority usage for the check-in and baggage facilities and departure gates until mid-2025.

The TAA terminal was built in 1974, occupying the site of the former Overseas Passenger Terminal. The current terminal building is largely the result of extensions designed by Hassell and completed in 1999. This included the construction of a 60-metre (197 ft) roof span above a new column-free check-in hall and resulted in extending the terminal footprint to 80,000 square metres (860,000 sq ft). Since the opening of the terminal in 1974, the original airport terminal building built in 1940 was incorporated into the southwest portion of the newer terminal and is currently near gates 17 to 19 of Terminal 3 (as of 2024).

The terminal is located in the northeastern section adjacent to Terminal 2, with which it shares an underground train station. There are 14 parking bays served by aerobridges, including two served by dual aerobridges. Terminal 3 features a large Qantas Club lounge, along with a dedicated Business Class and Chairman's lounge. Terminal 3 also has a 'Heritage Collection' located adjacent to gate 13, dedicated to Qantas and including many collections from the airline's 90-plus years of service. It also has a view of the airport's apron and is used commonly by plane-spotters.

Sydney Airport previously had a fourth passenger terminal, east of Terminal 2. This was known as Domestic Express or simply Express Terminal. Construction of the terminal and adjacent aircraft parking aprons was completed in "a record 56 days", and operations began on 5 June 2000 with an official opening on 18 July that year. It was used by Hazelton Airlines (later Rex Airlines) and low-cost carriers Virgin Blue and the now-defunct Impulse Airlines (until May 2001). Following Ansett's collapse and the airport's purchase of the Ansett terminal in 2002, the airlines at the Express Terminal began moving to the former Ansett terminal (Terminal 2). Virgin Blue was last to use the Express Terminal and moved to Terminal 2 on 12 December 2002. The former express terminal is now used as an office building.

The airport is a major hub for freight transport to and from Australia, handling approximately 45 percent of the national cargo traffic. Therefore, it is equipped with extensive freight facilities including seven dedicated cargo terminals operated by several handlers.

Airlines	Destinations
AirAsia X	Kuala Lumpur–International
Aircalin	Nouméa
Air Canada	Toronto–Pearson, Vancouver
Air China	Beijing–Capital
Air India	Delhi
Air New Zealand	Auckland, Christchurch, Queenstown, Wellington
Air Niugini	Port Moresby
All Nippon Airways	Tokyo–Haneda
American Airlines	Los Angeles
Asiana Airlines	Seoul–Incheon
Batik Air Malaysia	Denpasar, Kuala Lumpur–International
Beijing Capital Airlines	Qingdao
British Airways	London–Heathrow, Singapore
Cathay Pacific	Hong Kong
Cebu Pacific	Manila
China Airlines	Taipei–Taoyuan
China Eastern Airlines	Auckland, Hangzhou, Jinan, Nanjing, Shanghai–Pudong, Wuhan, Xi'an
China Southern Airlines	Guangzhou, Shenzhen Seasonal: Beijing–Daxing
Delta Air Lines	Los Angeles
Emirates	Christchurch, Dubai–International
Etihad Airways	Abu Dhabi
Fiji Airways	Nadi
FlyPelican	Mudgee, Newcastle
Garuda Indonesia	Denpasar, Jakarta–Soekarno-Hatta
Hainan Airlines	Haikou, Taiyuan
Hawaiian Airlines	Honolulu
Japan Airlines	Tokyo–Haneda
Jetstar	Adelaide, Auckland, Avalon, Ayers Rock, Ballina, Brisbane, Busselton, Cairns, Darwin, Denpasar, Gold Coast, Hamilton (begins 16 June 2025), Hamilton Island, Hervey Bay, Hobart, Ho Chi Minh City, Honolulu, Launceston, Melbourne, Nadi, Osaka–Kansai, Perth, Phuket, Port Vila, Proserpine, Queenstown, Rarotonga, Seoul–Incheon, Sunshine Coast, Townsville
Juneyao Air	Shanghai–Pudong
Korean Air	Seoul–Incheon
LATAM Chile	Auckland, Santiago de Chile
Link Airways	Brisbane, Inverell, Narrabri
Malaysia Airlines	Kuala Lumpur–International
Philippine Airlines	Manila
Qantas	Adelaide, Alice Springs, Auckland, Ayers Rock, Bangkok–Suvarnabhumi, Bengaluru, Brisbane, Cairns, Christchurch, Dallas/Fort Worth, Darwin, Denpasar, Gold Coast, Hamilton Island, Hobart, Hong Kong, Honolulu, Jakarta–Soekarno-Hatta, Johannesburg–O.R. Tambo, London–Heathrow, Los Angeles, Manila, Melbourne, Nadi, New York–JFK, Norfolk Island, Nouméa, Nuku'alofa, Paris–Charles de Gaulle, Perth, Port Moresby, Queenstown, San Francisco, Santiago de Chile, Seoul–Incheon (ends 15 June 2025), Singapore, Sunshine Coast, Tokyo–Haneda, Vancouver, Wellington Seasonal: Antarctica, Broome, Canberra, Rome–Fiumicino
QantasLink	Albury, Armidale, Ballina, Bendigo, Broken Hill, Canberra, Coffs Harbour, Dubbo, Griffith, Hobart, Launceston, Lord Howe Island (ends 25 February 2026), Merimbula, Mildura, Moree, Orange, Port Macquarie, Tamworth, Toowoomba, Townsville, Wagga Wagga Seasonal: Cooma
Qatar Airways	Doha
Rex Airlines	Albury, Broken Hill, Coffs Harbour, Dubbo, Griffith, Merimbula, Moruya, Narrandera, Orange, Parkes, Port Macquarie, Wagga Wagga
Scoot	Singapore
Sichuan Airlines	Chengdu–Tianfu
Singapore Airlines	Singapore
Skytrans	Lord Howe Island (begins 26 February 2026)
SriLankan Airlines	Colombo–Bandaranaike
Thai AirAsia X	Bangkok–Don Mueang
Thai Airways International	Bangkok–Suvarnabhumi
Tianjin Airlines	Chongqing, Zhengzhou
T'way Air	Seoul–Incheon
Turkish Airlines	Istanbul, Kuala Lumpur–International
United Airlines	Los Angeles, San Francisco Seasonal: Houston–Intercontinental
VietJet Air	Hanoi, Ho Chi Minh City
Vietnam Airlines	Hanoi, Ho Chi Minh City
Virgin Australia	Adelaide, Ballina, Brisbane, Cairns, Canberra, Denpasar, Doha (begins 12 June 2025), Gold Coast, Hamilton Island, Hobart, Launceston, Melbourne, Nadi, Perth, Queenstown, Sunshine Coast
XiamenAir	Xiamen

^1 Virgin Australia's flight to Doha is operated by Qatar Airways through a wet lease agreement

Airlines	Destinations
Airwork	Auckland, Christchurch
Cathay Cargo	Hong Kong, Melbourne
DHL Aviation	Honolulu, Los Angeles, Melbourne, Singapore
Emirates SkyCargo	Hong Kong, Singapore
FedEx Express	Guangzhou, Honolulu, Singapore
MASkargo	Kuala Lumpur–International
Qantas Freight	Auckland, Bangkok–Suvarnabhumi, Brisbane, Chicago–O'Hare, Chongqing, Christchurch, Gold Coast, Hong Kong, Honolulu, Jakarta–Soekarno–Hatta, Melbourne, Shanghai–Pudong
Singapore Airlines Cargo	Auckland, Melbourne, Singapore
Tasman Cargo Airlines	Auckland, Christchurch, Hong Kong
Team Global Express	Brisbane, Melbourne
UPS Airlines	Honolulu, Seoul–Incheon, Shanghai–Pudong, Shenzhen, Singapore

Annual passenger statistics for Sydney Airport

Year	Domestic	International	Total	Change
1998	14,275,077	6,933,551	21,208,628	1.4%
1999	14,877,901	7,388,153	22,266,054	5.0%
2000	16,240,310	8,237,223	24,477,533	9.9%
2001	16,563,296	8,228,973	24,792,269	1.3%
2002	15,187,908	8,006,775	23,194,683	-6.4%
2003	16,548,322	7,929,841	24,478,163	5.5%
2004	18,246,249	8,951,825	27,198,074	11.1%
2005	18,940,167	9,515,983	28,456,150	4.6%
2006	20,119,000	9,865,970	29,984,970	5.4%
2007	21,469,055	10,378,240	31,847,295	6.2%
2008	22,345,905	10,552,900	32,898,805	3.3%
2009	22,362,772	10,635,270	32,998,042	0.3%
2010	24,194,804	11,455,537	35,650,341	8.0%
2011	23,925,351	11,748,582	35,673,933	0.1%
2012	24,638,877	12,369,193	37,008,070	3.7%
2013	25,216,661	12,933,885	38,150,546	3.1%
2014	25,417,107	13,315,835	38,732,942	1.5%
2015	25,897,619	13,911,228	39,808,847	2.8%
2016	26,905,944	15,111,977	42,017,921	5.5%
2017	27,291,874	16,038,186	43,330,060	3.1%
2018	27,667,273	16,762,485	44,429,758	2.5%
2019	27,538,404	16,890,441	44,428,845	0.0%
2020	7,444,780	3,782,912	11,227,692	-74.7%
2021	7,171,759	729,529	7,901,288	-29.6%
2022	20,872,921	8,110,953	28,983,874	266.8%
2023	24,110,000	14,540,000	38,650,000	33.4%

Sydney Airport handled over 24.1 million domestic passengers in the year ending 31 December 2023, a significant increase from 2021 levels, largely due to the aviation downturn from COVID-19.

Busiest domestic routes (year ending 31 December 2023)

Rank	Airport	Passengers handled (000s)	% Change	Airlines
1	Melbourne	8,202.4	24.8%	Jetstar, Qantas, Rex Airlines, Virgin Australia
2	Brisbane	4,579.5	27.4%	Jetstar, Link Airways, Qantas, Rex Airlines, Virgin Australia
3	Gold Coast	2,649.8	15.3%	Jetstar, Qantas, QantasLink, Virgin Australia
4	Adelaide	1,879.7	33.3%	Jetstar, Qantas, Rex Airlines, Virgin Australia
5	Perth	1,721.8	53.9%	Jetstar, Qantas, Virgin Australia
6	Cairns	959.7	16.7%	Jetstar, Qantas, Virgin Australia
7	Sunshine Coast	821.6	20.0%	Jetstar, Qantas, QantasLink, Virgin Australia
8	Hobart	801.4	23.3%	Qantas, QantasLink, Virgin Australia
9	Canberra	645.7	20.3%	Qantas, QantasLink, Virgin Australia
10	Ballina	581.7	15.3%	Jetstar, QantasLink, Virgin Australia
11	Launceston	361.1	31.4%	Jetstar, Virgin Australia
12	Hamilton Island	267.9	14.8%	Jetstar, Virgin Australia
13	Coffs Harbour	232.2	11.2%	QantasLink, Rex Airlines
14	Dubbo	190.1	29.0%	QantasLink, Rex Airlines
15	Port Macquarie	180.1	26.1%	QantasLink, Rex Airlines

Sydney Airport handled 14.6 million international passengers in the year ending 31 December 2023.

Busiest international routes (year ending 30 June 2024)

Rank	Airport	Passengers handled	% change	Airlines
1	Singapore	1,683,068	5.8	British Airways, Qantas, Scoot, Singapore Airlines
2	Auckland	1,359,142	15.0	Air New Zealand, China Eastern Airlines, Jetstar, LATAM Chile, Qantas
3	Dubai	796,836	16.0	Emirates
4	Denpasar	782,405	42.1	Batik Air Malaysia, Garuda Indonesia, Jetstar, Qantas, Virgin Australia
5	Los Angeles	778,471	11.0	American Airlines, Delta Air Lines, United Airlines, Qantas
6	Hong Kong	762,023	85.2	Cathay Pacific, Qantas
7	Seoul	743,170	58.8	Asiana Airlines, Jetstar, Korean Air, Qantas, T'way Air
8	Tokyo	650,305	65.6	All Nippon Airways, Japan Airlines, Qantas
9	Nadi	571,860	0.8	Fiji Airways, Jetstar, Qantas, Virgin Australia
10	Kuala Lumpur	539,723	29.4	AirAsia X, Batik Air Malaysia, Malaysia Airlines
11	Bangkok	483,958	17.0	Qantas, Thai AirAsia X, Thai Airways International
12	Manila	431,819	7.1	Cebu Pacific, Philippine Airlines, Qantas
13	Guangzhou	421,621	266.9	China Southern Airlines
14	Ho Chi Minh City	413,932	36.4	Jetstar, VietJet Air, Vietnam Airlines
15	Christchurch	396,646	46.6	Air New Zealand, Emirates, Jetstar, Qantas

This section needs to be updated. Please help update this article to reflect recent events or newly available information. (September 2024)

In 2019, Sydney Airport handled 521,014 tonnes of international air freight and 23,260 tonnes of international air mail.

Sydney Airport has road connections in all directions. Southern Cross Drive (M1), a motorway, is the fastest toll-free link to the city centre. The M5 South Western Motorway (including the M5 East Freeway) links the airport with the south-western suburbs of Sydney. A ring road runs around the airport consisting of Airport Drive, Qantas Drive, General Holmes Drive, M5 East Freeway and Marsh Street. General Holmes Drive features a tunnel under the main north–south runway and three taxiways as well as providing access to an aircraft viewing area. Inside the airport a part-ring road – Ross Smith Avenue (named after Ross MacPherson Smith) – connects the Domestic Terminal with the control tower, the general aviation area, car-rental company storage yards, long-term car park, heliport, various retail operations and a hotel. A perimeter road runs inside the secured area for authorised vehicles only.

Since 2024, Sydney Gateway, a major road interchange now connects between the WestConnex M8 Motorway and Sydney Airport's terminals. The project provides a motorway-grade road directly from the terminals to Sydney's CBD, Parramatta and the south-western suburbs. Construction began in 2021 and was completed in mid 2024.

The airport runs several official car parks—Domestic Short Term, Domestic Remote Long Term, and International Short/Long Term.

The International Terminal is located beside a wide pedestrian and bicycle path. It links Mascot and Sydney City in the north-east with Tempe (via a foot bridge over Alexandra Canal) and Botany Bay to the south-west. All terminals offer bicycle racks and are also easily accessible by foot from nearby areas.

The airport is accessible via Sydney Trains T8 Airport & South Line, providing regular service to the Sydney CBD and the southwestern suburbs, using the Airport Link underground rail line since 2000. The International Airport station is located below the International terminal, while the Domestic Airport station is located under the car park between the domestic terminals (Terminal 2 and Terminal 3). While the stations are part of the Sydney Trains suburban network, they are privately owned and operated by the Airport Link Company and their use is subject to a surcharge. The trains that service the airport are regular suburban trains. Unlike airport trains at some other airports, these do not have special provisions for customers with luggage, do not operate express to the airport, and may have all seats occupied by commuters before the trains arrive at the airport.

The airport station surcharge may be avoided by passengers alighting at nearby stations and walking to either the International Terminal (from Wolli Creek station, about 1.6 km) or the Domestic Terminal (from Mascot station, about 1.8 km).

Transdev John Holland operates route 350 from the domestic terminal to Bondi Junction railway station while Transit Systems operates route 420 from Mascot railway station to Westfield Burwood via both International and Domestic terminals, as well as Banksia and Rockdale railway stations.

• On 10 September 1920, Arthur Herbert Tattle of Wellington, New Zealand, was killed on the runway at Mascot when he was struck on the crown of his head by a plane taking off. He had come to see two friends take off on the plane and was standing on the runway in the flight path with a camera looking down at the viewfinder when he failed to notice the speed of the fast approaching plane, its height or the shouted warning from the pilot. He was driven to South Sydney Hospital where he died soon after from "a concussion of the brain". An inquiry into the incident returned a finding of "accidental death" and was reported to be the first inquest in New South Wales resulting from an aeroplane accident.
• On 19 July 1945 a Consolidated C-87 Liberator Express operated by the Royal Air Force (RAF) bound for Manus Island failed to gain altitude after taking off from Sydney's now non-existent runway 22, struck trees and crashed into Muddy Creek, north of Brighton-Le-Sands. The aircraft exploded on impact, killing all 12 passengers and crew on board. All the victims were service personnel, five from the RAF, one from the Royal New Zealand Air Force and six from the Royal Navy.
• On 18 June 1950, a Douglas DC-3 of Ansett Airways taxiing for take-off from runway 22 for a night-time passenger flight to Brisbane, hit and partially derailed a coal train travelling on the railway line that crossed the runway. Only the co-pilot was injured.
• On 30 November 1961, Ansett-ANA Flight 325, a Vickers Viscount, crashed into Botany Bay shortly after take-off. The starboard (right) wing failed after the aircraft flew into a thunderstorm. All 15 people on board were killed.
• On 1 December 1969, a Boeing 707-320B of Pan Am registered N892PA and operating as Flight 812 overran the runway during take-off due to bird strikes. The accident investigation established that the aircraft struck a flock of seagulls, with a minimum of 11 individual bird strikes to the leading edges of the wings and engines 1, 2, and 3 (the two engines on the left wing and the inboard engine on the right wing). In particular, blade 14 of number 2 engine (the inboard engine on the left wing) was damaged by a single bird carcass and lost power before the decision to abandon the take-off (which occurred at or near V₁ or takeoff decision speed). The aircraft came to rest 560 ft (170 m) beyond the end of runway 16 (now runway 16R). During the crash, number 2 engine hit the ground and was damaged. The nose and left main landing gears failed and the aircraft came to rest supported by engines 1 and 2, the nose, and the remainder of the main landing gear. There were no injuries or fatalities amongst the 125 passengers and 11 crew. The accident investigation concluded that the overrun was not inevitable. The aircraft was destroyed in a 2011 accident.
• On 22 February 1970, a teenage boy from Randwick climbed into the wheel well of a Douglas DC-8 of Japan Air Lines operating as Flight 772. As the plane was taking off bound for Tokyo, he fell to his death with a photographer accidentally capturing the incident.
• On 29 January 1971, a Boeing 727 of Trans Australia Airlines (registered VH-TJA) and taking off as Flight 592, struck the tail of a taxiing Douglas DC-8 of Canadian Pacific Air Lines (registered CF-CPQ) that had just landed as Flight 301. The DC-8 crew misinterpreted instructions on which exit to use after landing and backtracked along the runway instead of turning off it onto a taxiway; and the tower controller cleared the 727 for take-off in the mistaken belief that the runway was clear. The 727 crew saw the DC-8 during the take-off roll then proceeded with the take-off rather than take evasive measures. The 727 was damaged in the inboard right wing and the fuselage and lost pressure in one of its hydraulic systems but managed to return and land safely; a building on the ground was struck by parts of the 727's starboard landing gear doors that fell off as it approached to land. The upper eight-and-a-half feet (about 2.6m) of the DC-8's tail fin and a corresponding proportion of the rudder were torn off.
• On 4 April 1979, a hijacker attempted to take over a Boeing 747SP of Pan Am registered as N530PA and operating as Flight 816 parked at the airport. He managed to get past the immigration and security screening. He then grabbed a female hostage and made some demands. Police were able to fatally shoot him; he later died of his injuries.
• On 21 February 1980, a Beechcraft Super King Air registered VH-AAV and operating Advance Airlines Flight 4210 took off from Sydney Airport and suffered an engine failure. The pilot flew the aircraft back to the airport and attempted to land but crashed into the sea wall surrounding runway 16/34 (now 16R/34L). All 13 people on board died in the accident.
• On 12 April 1989, a British Airways Concorde operating a charter from Christchurch to Sydney experienced vibrations near the top of climb while flying supersonic. The crew continued to Sydney believing they had experienced an engine surge. On landing, it was discovered that parts of the rudder had disintegrated in flight. The UK Air Accidents Investigation Branch investigated the incident and found it was a result of poor maintenance practices weakening the structure.
• On 24 April 1994, a Douglas DC-3 registered VH-EDC of South Pacific Airmotive had an engine malfunction shortly after take-off on a charter flight to Norfolk Island. The engine was feathered but airspeed decayed and it was found to be impossible to maintain height. A successful ditching was carried out into Botany Bay. All four crew and 21 passengers - pupils and teachers of Scots College and journalists, travelling to participate in Anzac Day commemorations on Norfolk Island - safely evacuated the aircraft. The investigation revealed that the aircraft was overloaded and the propeller was not fully feathered.
• On 19 October 1994, Ansett Australia Flight 881, a Boeing 747-300 registered VH-INH operating from Sydney to Osaka, returned and landed at Sydney without the nose wheel extended. Approximately one hour after departure the crew shut down the number one engine because of an oil leak. They returned the aircraft to Sydney where the approach proceeded normally until the landing gear was extended. The landing gear warning horn began to sound because the nose landing gear had not extended. The flight crew unsuccessfully attempted to establish the reason for the warning. Believing the gear to be down, the crew elected to complete the landing, with the result that the aircraft was landed with the nose gear retracted. There was no fire and the pilot in command decided not to initiate an emergency evacuation. All passengers and crew were evacuated safely.
• On 14 August 2023, a Malaysia Airlines Airbus A330-300 operating Flight MH122 from Sydney to Kuala Lumpur was forced to return to Sydney. An extremist onboard the plane was shouting at crew and passengers and also made threats. After landing the plane parked on one of the runways of Sydney airport, thereby blocking traffic. Police later boarded the plane and arrested the man.
• On 19 October 2024, an Air New Zealand Airbus A320neo operating Flight NZ247 from Wellington to Sydney reported a bomb threat onboard from finding a note onboard. After landing the aircraft was isolated at the end of Runway 16L, and normal traffic moved over to the east-west runway, Runway 07/25.
• On 8 November 2024, Qantas Airways Flight 520 enroute to Brisbane suffered a compressor stall or uncontained engine failure in the Number 2 Engine, following the rotation of the aircraft leaking fuel plus the heat of the day ignited a grass fire east of the threshold of Runway 16L, Inbound flights were diverted to Newcastle Airport, Brisbane Airport, Canberra Airport and Melbourne-Tullamarine Airport. The flight departed Sydney Airport at about 12.15pm, but returned and landed safely at about 1pm. The captain is said to have told passengers there was a problem with the right engine.

The local, state and federal governments have investigated the viability of building a second major airport in Sydney since the 1940s. Significant passenger growth at Sydney Airport indicates the potential need for a second airport – for example, total passenger numbers increased from less than 10 million in 1985–86 to over 25 million in 2000–01 and over 40 million in 2015–16. This growth is expected to continue, with Sydney region passenger demand forecast to reach 87 million passengers by 2035.

On 15 April 2014, the Federal Government announced that Badgerys Creek would be Sydney's second international airport, to be known as Western Sydney Airport. Press releases suggest that the airport will not be subject to curfews and will open in phases, initially with a single airport runway and terminal. It would be linked to Sydney Airport by local roads and motorways, and by extensions to the existing suburban rail network. In May 2017 the Federal Government announced it would build (pay for) the second Sydney Airport after the Sydney Airport Group declined the Government's offer to build the second airport.

The new airport started construction in 2018 and will be completed in late 2026.

• List of airports in Greater Sydney
• List of airports in New South Wales
• RAAF Station Mascot
• Transport in Australia
• United States Army Air Forces in Australia (World War II)

• Official website
• Sydney Tower
• Sydney Airport Frequency and Airway Data