Singapore Changi Airport (/ˈtʃɑːŋi/ CHAHNG-ee) (IATA: SIN, ICAO: WSSS) is a major international airport that serves Singapore, and is one of the largest transportation hubs in Asia. More than 100 airlines operate from the airport, with flights to destinations in Asia, Oceania, Africa, Europe, the Middle East, and North America.

The airport is located within its namesake, the district of Changi, at the eastern end of Singapore, approximately 24 kilometres (15 miles) east from Singapore's Downtown Core on a 25-square-kilometre (9.7 sq mi) site. It is the home base of BOC Aviation and Jetstar Asia, as well as the country's flag carrier of Singapore Airlines, its cargo division Singapore Airlines Cargo and its low-cost subsidiary Scoot. SATS is also headquartered at the airport.

With Singapore's strategic location being a favourable destination for high demand layovers, the airport also serves as a focus city for Qantas, as well as the flagship cargo hub for FedEx Express in Asia. In 2019, Changi Airport served 68.3 million passengers, making it the 18th busiest airport in the world. The airport is operated by Changi Airport Group, a wholly-owned subsidiary under the purview of the Ministry of Finance of the Government of Singapore. It is served by three runways, all 4 kilometres (2.5 mi) long, and consists of four terminal buildings. Three of the terminal buildings are connected to an entertainment and retail complex known as Jewel Changi Airport.

Changi Airport serves more than 100 airlines flying to 400+ cities in around 100+ countries and territories worldwide. About 7,400 flights arrive or depart at Changi each week, or one every 80 seconds.

For the 2019 full-year figures published by the airport, the airport handled 68,300,000 passengers (a 4.0% increase over the previous year), the most in its 38-year history. This made it the seventh busiest airport by international passenger traffic in the world and the third busiest in Asia. In December 2019, Changi Airport registered a total of 6.41 million passenger movements, the highest the airport has ever achieved in a month since it opened in 1981. Its daily traffic movement record was also broken on 20 December 2019, with 226,692 passengers passing through during that day. In addition to being an important passenger hub, the airport is also one of the busiest cargo airports in the world, handling 2.01 million tonnes of cargo in 2019. The total number of commercial aircraft movements decreased by 1.0% from the previous year to 382,000 in 2019.

The airport has won over 680 awards since its opening, including 28 "Best Airport" awards in 2019 alone. Changi Airport's efforts to mitigate the effects of ageing infrastructure include continual physical upgrades to its existing terminals and building new facilities to maintain its high standards in airport service quality.

Prior to Changi, Singapore's main international airport was located at Paya Lebar. It had opened in 1955 with a single runway and a small passenger terminal, having itself replaced the previous Kallang Airport that began operations in 1937. The decision to move the airport from Paya Lebar to Changi was based on a number of factors. With the growth in global aviation transport, the airport was facing congestion problems. Its inability to cope with the rising traffic became critical by the 1970s; annual passenger numbers rose dramatically from 300,000 in 1955 to 1.7 million in 1970 and to 4 million in 1975. As a result, there was a need to accommodate the growing demand for air travel, the desire to establish Singapore as a global aviation hub, and the need to modernise the country's air transport infrastructure.

The Singaporean government had two options – expand the existing airport at Paya Lebar or build a new airport at another location. After extensive studies, a decision was made in 1972 to keep the airport at Paya Lebar, as recommended by aviation consultants. Plans were made for the building of a second runway and an extensive redevelopment and expansion to the passenger terminal building. A year later, however, the plans were reviewed again as the pressure to expand the airport eased because of the 1973 oil crisis.

Concerned that the existing airport was located in an area with potential for urban growth, which would physically hem it in on all sides, the government subsequently decided in 1975 to build a new airport at the eastern tip of the main island at Changi, at the existing site of Changi Air Base. However, as there was an increase in traffic, the airport still had to be expanded at that time. In addition, aircraft could fly over the sea, avoiding noise pollution issues within residential areas and avoid disastrous consequences on the ground in the event of an air mishap. Formerly known as the Singapore International Airport, the airport in Paya Lebar was subsequently converted for military use and renamed as Paya Lebar Air Base.

The original master plan for Changi Airport involved constructing a dual-terminal and dual-runway configuration over two phases with provisions for another two passenger terminals in the future. Phase 1 included the construction for the first passenger terminal, the first runway reusing and upgrading the main runway of Changi Air Base, 45 aircraft parking bays, support facilities and structures, including a large maintenance hangar, a fire station, workshops and administrative offices, an airfreight complex, two cargo agents buildings, in-flight catering kitchens and an 80 m (260 ft) control tower. Construction for the second phase would commence immediately after the completion of Phase 1 and include the second runway, 23 new aircraft parking bays in addition to the existing 45 bays, a second fire station and a third cargo agent building.

Changi Airport commenced commercial operations on 1 July 1981. Its first flight, Singapore Airlines SQ101, touched down that day at 07:10:00 Singapore Time with 140 passengers from Kuala Lumpur. It officially opened five months later on 29 December 1981. The airport ended its first year of operations with 12.1 million passengers, close to 200,000 tonnes of air freight handled and 63,100 aircraft movements. Subsequent phases opened progressively within the next few decades, with Terminal 2 opening for passenger traffic in 1990, Terminal 3 in 2008, and Terminal 4 in 2017. Terminal 5, which would be larger than all the previous terminals combined, is expected to open in 2030.

Changi Airport has four main passenger terminals arranged in an elongated inverted "U" shape with Jewel in the centre of the "U" shape. Currently, the airport has a designed total annual handling capacity of 85 million passengers.

Terminal	Date of opening	Location
Terminal 1	1 July 1981	Northern end
Terminal 2	22 November 1990	Eastern end
Terminal 3	9 January 2008	Western end
Terminal 4	31 October 2017	Southern end

There is also a privately run luxury terminal called the JetQuay CIP Terminal. It is similar to the Lufthansa First Class Terminal at Frankfurt Airport, but is open to all passengers travelling in all classes on all airlines with an access fee.

The short-lived Budget Terminal was opened on 26 March 2006 and closed on 25 September 2012 to make way for Terminal 4.

Terminal 5 is currently under construction, along with a third runway. The new terminal is expected to be completed by 2030.

Terminal 5 is anticipated to be operational by the mid-2030s, to meet an anticipated doubling of volume by the 2040s. It is expected to handle 50 million passenger movements per annum. The airport terminal structure is projected to be larger than all the previous terminals combined. It will be built on reclaimed land to the east of the present terminals. It will be partially funded through an increased levy. KPF Singapore with Heatherwick Studio, Architects 61, and DP Architects will provide architectural services. Arup Singapore, Mott MacDonald Singapore and Surbana Jurong Consultants will provide engineering services. The former Transport Minister Khaw Boon Wan said that the Changi Terminal 5 project was delayed by at least 2 years as a result of the COVID-19 pandemic.

Jewel Changi Airport, which opened on 17 April 2019, is a nature-themed entertainment and retail complex interconnecting Terminals 1, 2 and 3. Announced in 2013, it is a new terminal-like structure that is intended to simultaneously be a mixed-use complex. It is situated on a 3.5-hectare site where the Terminal 1 car park used to reside, which has since been moved underground. Jewel was developed by Jewel Changi Airport Trustee Pte Ltd, a joint venture between Changi Airport Group and CapitaLand, through its wholly owned shopping mall business, CapitaLand Mall Asia. The project cost S$1.7 billion.

Part of this project was planned to help expand Terminal 1 to handle 24 million passengers per year by 2018 with stand-alone check-in facilities and lounges, making it an unofficial terminal on its own. The Indoor Waterfall (named "Rain Vortex") in the structure holds the World Record for the tallest indoor waterfall in the world.

The Air Cargo Division of the Changi Airport Group (CAG) manages the Changi Airfreight Centre located in the north of the airport premises. The airport handled 1.81 million tonnes of air cargo in 2012, making it the 7th busiest airfreight hub in the world and the fifth busiest in Asia. Due to Singapore's large electronics sector, electrical components constitute a significant part of the total cargo traffic handled at the airport. Changi airport has initiated attempts to expand into the perishable air cargo market. In 2015, Changi Airport handled 1,853,087 tonnes of air freight. Air Cargo World awarded the 2013 Air Cargo Excellence Award to Changi Airport for handling more than 1,000,000 tonnes of cargo in Asia.

The airport handled 2,006,300 tonnes of cargo in 2016, making it the 13th top cargo airport in the world and the sixth in the Asia Pacific region.

In 2017, the airport handled 2,125,226 tonnes of cargo. The top five cargo markets for the airport were China, Australia, Hong Kong, United States and India.

Changi Airport Group (Singapore) Pte Ltd (CAG) was formed on 16 June 2009 upon the corporatisation of Singapore Changi Airport by Civil Aviation Authority of Singapore as the licensee and operator of the airport.

As the airport only handles international passenger traffic, all terminals in operation are equipped with immigration-processing facilities for international travel.

After recovering from a drop in passenger traffic as a result of the September 11 attacks in 2001 and the Severe Acute Respiratory Syndrome (SARS) epidemic in 2003, the airport saw rapid growth in traffic, which hit the 30-million mark for the first time in 2004. In March 2008, prior to the full effect of the financial crisis of 2007–2010 on the global economy, the airport was predicted to handle 50 million passengers by 2012 due to the opening of casinos in Singapore and the phased liberalisation of the ASEAN aviation sector. As predicted, the airport surpassed the 50-million mark in 2012.

On 18 December 2017, the airport surpassed the 60-million mark for the first time. The airport saw a record 65.6 million passenger movements in 2018 – beating 2017's record of 60 million passengers with a 5.5 per cent increase.

In 2019, Firefly, the sole turboprop operator in Changi Airport, moved to Seletar Airport to make way for their jet operations.

Due to the COVID-19 pandemic, passenger traffic fell in 2020 and 2021, resulting in Terminals 2 and 4 closing temporarily in May 2020. Terminals 1 and 3 remained open for passengers throughout, but were closed to the general public on 12 May 2021 along with Jewel, reopening on 1 September 2021.

On 1 November 2023, Terminal 2 fully reopened after three and a half years of upgrading. The refurbished terminal features nature-themed decorations and a 14m-tall digital waterfall display called the Wonderfall.

The Changi Airport Group (CAG) manages the overall safety and security of the airport. The Airport Management Division of the CAG manages the customer aspects of the airport's security, while the Aviation Security Unit oversees the airport's compliance with aviation security (AVSEC) policies, and manages AVSEC-related projects. The airport's emergency and fire-fighting services are handled by the Airport Emergency Service Division. The Airport Emergency Services handle all instances of rescue and fire-fighting within the airport premises as well as in surrounding waters. It operates from two main fire stations (Station 1 by Runway 1 along West Perimeter Road and Station 2 by Runway 2), one sub-station (Domestic Fire Station), and one sea rescue base near the airport.

The airport's security comes under the regulatory purview of the Airport Police Division of the Singapore Police Force (SPF). The day to day discharge of security functions at the airport is performed by auxiliary police forces including Aetos Security Management, Certis CISCO and SATS Security Services. Aetos and SATS Security Services are affiliated to the ground handling companies of Dnata and Singapore Changi Airport Terminal Services respectively. On 29 April 2008, CAAS signed its then-biggest single security contract for all airport-related security services by engaging Certis CISCO to provide security services at Singapore Changi Airport, as well as Seletar Airport, Changi Airfreight Centre, and the Singapore Air Traffic Control Centre. It involves the deployment of about 2,600 Certis Cisco personnel, including armed Auxiliary Police Officers and unarmed aviation security officers to perform tasks such as screening checked baggage, controlling access to restricted areas, and screening passengers before they board their aircraft.

Since the September 11 attacks and the naming of the airport as a terrorist target by the Jemaah Islamiyah, the airport's security was tightened. Prohibited items do include sharp/blunt objects and liquids/gels/aerosols above 100ml, however people are aware of and no longer enforced by Certis CISCO officers. Devices more than 7 inch are still needed to be removed for security screening as they use the X-ray scanner and have not yet implemented the Thales HELIXVIEW scanning system where they do not need to take out devices more than 7 inch. As such, the screening is at the transition point from public to sterile area as under Infrastructure Protection Act 2017. Duty free shops that sells liquor is exempted from regulations.

Operational statistics (1980–1989)
Year	Passenger movements	Passenger % change over previous year	Airfreight movements (tonnes)	Airfreight % change over previous year	Aircraft movements	Aircraft % change over previous year	Notes
1980	7,294,549	0.0	—	—	75,971	0.0
1981	8,152,158	11.7%	—	—	71,365	6.1%
1982	8,611,812	5.6%	—	—	68,159	4.5%
1983	8,679,152	0.8%	—	—	67,594	0.8%
1984	9,465,651	9.1%	—	—	70,674	4.5%
1985	9,856,830	4.1%	—	—	73,223	3.6%
1986	10,067,719	2.1%	352,806	0.0	73,022	0.3%
1987	11,203,793	11.3%	419,099	18.8%	76,276	4.5%
1988	12,595,286	12.4%	512,509	22.3%	82,930	8.7%
1989	14,136,367	12.3%	577,610	12.7%	87,421	5.4%
Sources:

Operational statistics (1990–1999)
Year	Passenger movements	Passenger % change over previous year	Airfreight movements (tonnes)	Airfreight % change over previous year	Aircraft movements	Aircraft % change over previous year	Notes
1990	15,620,758	10.5%	623,841	8.0%	97,675	11.7%
1991	16,285,039	4.3%	643,209	3.1%	108,728	11.3%
1992	18,100,155	11.1%	719,004	11.7%	125,526	15.4%
1993	19,987,214	10.4%	838,416	16.6%	136,762	8.9%
1994	21,644,677	8.3%	1,009,764	20.4%	145,334	6.3%
1995	23,196,240	7.2%	1,105,773	9.5%	156,334	7.6%
1996	24,514,248	5.7%	1,190,457	7.6%	166,749	6.7%
1997	25,174,344	2.7%	1,336,254	12.2%	172,672	3.5%
1998	23,803,180	5.4%	1,283,660	4.0%	165,242	4.3%	1997 Asian financial crisis
1999	26,064,645	9.5	1,500,393	16.8	165,961	0.4
Sources:

Operational statistics (2000–2009)
Year	Passenger movements	Passenger % change over previous year	Airfreight movements (tonnes)	Airfreight % change over previous year	Aircraft movements	Aircraft % change over previous year	Notes
2000	28,618,200	9.8	1,682,489	12.1	173,947	4.8
2001	28,093,759	1.83	1,507,062	11.6	179,359	3.1	September 11 attacks
2002	28,979,344	3.2	1,637,797	8.7	174,820	2.5
2003	24,664,137	14.9	1,611,407	1.6	154,346	11.7	2002–2004 SARS outbreak
2004	30,353,565	23.0	1,775,092	10.1	184,932	19.8
2005	32,430,856	6.8	1,833,721	3.3	204,138	10.3
2006	35,033,083	8.0	1,931,881	5.4	214,000	4.8
2007	36,701,556	4.8	1,918,159	0.7	221,000	3.3
2008	37,694,824	2.7	1,883,894	1.8	232,000	5.0
2009	37,203,978	1.3	1,633,791	15.3	240,360	3.6	Financial crisis of 2007–2008
Sources:

Operational statistics (2010–2019)
Year	Passenger movements	Passenger % change over previous year	Airfreight movements (tonnes)	Airfreight % change over previous year	Aircraft movements	Aircraft % change over previous year	Notes
2010	42,038,777	13.0	1,813,809	11.0	263,593	9.7
2011	46,543,845	10.7	1,865,252	2.8	301,711	14.5
2012	51,181,804	10.0	1,806,225	3.2	324,722	7.6
2013	53,726,087	5.0	1,850,233	2.4	343,800	5.9
2014	54,093,070	0.8	1,843,799	0.3	341,386	0.7
2015	55,448,964	2.5	1,853,087	0.5	346,334	1.5
2016	58,698,039	5.9	1,969,434	6.3	360,490	4.1
2017	62,219,573	6.0	2,125,226	7.9	373,201	3.5
2018	65,600,000	5.5	2,150,000	1.4	386,000	3.4
2019	68,300,000	4.0	2,010,000	6.5	382,000	1.0
Sources:

Operational statistics (2020–2022)
Year	Passenger movements	Passenger % change over previous year	Airfreight movements (tonnes)	Airfreight % change over previous year	Aircraft movements	Aircraft % change over previous year	Notes
2020	11,800,000	82.8	1,540,000	23.3	125,000	67.2	COVID-19 pandemic
2021	3,053,000	74.1	1,947,000	26.1	109,000	13.2	COVID-19 pandemic
2022	32,200,000	954.7	1,850,000	5.0	219,000	100.9
2023	58,900,000	82.9	1,740,000	5.9	328,000	49.8
Sources:

In 2018, Indonesia was the largest market for the airport, followed by Malaysia, China, Thailand, Australia, India, Hong Kong, Japan, Philippines and Vietnam. Kuala Lumpur was the top destination for travellers in the airport, followed by Bangkok, Jakarta, Hong Kong, Manila, Denpasar, Tokyo, Ho Chi Minh City, Taipei and Sydney.

Airlines	Destinations
Aero Dili	Dili
Air Canada	Vancouver
Air China	Beijing–Capital, Chengdu–Tianfu, Chongqing, Shanghai–Pudong
Air France	Paris–Charles de Gaulle
Air India	Bengaluru, Chennai, Delhi, Mumbai, Pune
Air India Express	Chennai, Madurai, Tiruchirappalli
Air Japan	Tokyo–Narita
Air Macau	Macau
Air New Zealand	Auckland
Air Niugini	Port Moresby
AirAsia	Ipoh, Kota Kinabalu, Kuala Lumpur–International, Kuching, Langkawi, Penang
AirAsia Cambodia	Siem Reap
Aircalin	Nouméa
Alii Palau Airlines operated by Druk Air	Koror
All Nippon Airways	Tokyo–Haneda, Tokyo–Narita
Asiana Airlines	Seoul–Incheon
Bangkok Airways	Koh Samui
Batik Air	Denpasar, Jakarta–Soekarno-Hatta, Medan
Batik Air Malaysia	Kuala Lumpur–International
Biman Bangladesh Airlines	Dhaka
British Airways	London–Heathrow, Sydney
Cambodia Airways	Phnom Penh, Sanya
Cathay Pacific	Bangkok–Suvarnabhumi, Hong Kong
Cebu Pacific	Cebu, Clark, Iloilo (resumes 26 November 2024), Manila
China Airlines	Kaohsiung, Taipei–Taoyuan
China Eastern Airlines	Beijing–Daxing, Changsha, Hangzhou, Hefei, Nanjing, Shanghai–Pudong, Wuhan, Xi'an
China Southern Airlines	Guangzhou, Shenzhen
Chongqing Airlines	Chongqing
Citilink	Jakarta–Soekarno-Hatta
Drukair	Guwahati, Paro
Emirates	Dubai–International, Melbourne, Phnom Penh
Ethiopian Airlines	Addis Ababa, Kuala Lumpur–International
Etihad Airways	Abu Dhabi
EVA Air	Taipei–Taoyuan
Fiji Airways	Nadi
Finnair	Helsinki
Firefly	Penang
Garuda Indonesia	Denpasar, Jakarta–Soekarno-Hatta, Surabaya
Gulf Air	Bahrain
GX Airlines	Linyi, Nanning
Hainan Airlines	Haikou
IndiGo	Bengaluru, Bhubaneswar, Chennai, Coimbatore, Delhi, Hyderabad, Kolkata, Mumbai, Tiruchirappalli
Indonesia AirAsia	Denpasar, Jakarta–Soekarno-Hatta
Japan Airlines	Tokyo–Haneda, Tokyo–Narita
Jeju Air	Busan
Jetstar	Melbourne, Perth
Jetstar Asia	Bangkok–Suvarnabhumi, Clark, Colombo–Bandaranaike (resumes 21 November 2024), Denpasar, Haikou, Jakarta–Soekarno-Hatta, Krabi, Kuala Lumpur–International, Manila, Medan, Naha, Osaka–Kansai, Penang, Phuket, Surabaya, Wuxi Seasonal: Broome (resumes 1 April 2025)
Juneyao Air	Shanghai–Pudong
KLM	Amsterdam, Denpasar
Korean Air	Seoul–Incheon
Lufthansa	Frankfurt, Munich
Malaysia Airlines	Kuala Lumpur–International
Myanmar Airways International	Yangon
Myanmar National Airlines	Yangon
Peach	Osaka–Kansai (begins 5 December 2024)
Philippine Airlines	Manila
Qantas	Brisbane, London–Heathrow, Melbourne, Perth, Sydney
QantasLink	Darwin (begins 30 March 2025)
Qatar Airways	Doha
Royal Brunei Airlines	Bandar Seri Begawan
Saudia	Jeddah
Scoot	Amritsar, Athens, Balikpapan, Bandung–Kertajati, Bangkok–Suvarnabhumi, Berlin, Cebu, Changsha, Chennai, Chiang Mai, Clark, Coimbatore, Davao, Denpasar, Fuzhou, Guangzhou, Haikou, Hangzhou, Hanoi, Hat Yai, Ho Chi Minh City, Hong Kong, Ipoh, Jakarta–Soekarno-Hatta, Jeddah, Jeju, Jieyang (begins 16 January 2025), Jinan, Koh Samui, Kota Kinabalu, Krabi, Kuala Lumpur–International, Kuala Lumpur–Subang, Kuantan, Kuching, Kunming, Langkawi, Lombok, Macau, Makassar, Malacca, Manado, Manila, Melbourne, Miri, Nanchang (ends 14 February 2025), Nanjing, Nanning, Osaka–Kansai, Padang (begins 6 January 2025), Pekanbaru, Penang, Perth, Phuket, Phu Quoc (begins 20 December 2024), Qingdao, Sapporo–Chitose, Seoul–Incheon, Shenyang, Sibu, Surabaya, Sydney, Taipei–Taoyuan, Thiruvananthapuram, Tianjin, Tiruchirappalli, Tokyo–Narita, Vientiane, Visakhapatnam, Wuhan, Xi'an, Yogyakarta–International, Zhengzhou
Shandong Airlines	Jinan
Shenzhen Airlines	Shenzhen
Sichuan Airlines	Chengdu–Tianfu
Singapore Airlines	Adelaide, Ahmedabad, Amsterdam, Auckland, Bandar Seri Begawan, Bangkok–Suvarnabhumi, Barcelona, Beijing–Capital, Beijing–Daxing, Bengaluru, Brisbane, Brussels, Busan, Cairns, Cape Town, Cebu, Chengdu–Tianfu, Chennai, Chongqing, Christchurch, Colombo–Bandaranaike, Copenhagen, Da Nang, Darwin, Delhi, Denpasar, Dhaka, Dubai–International, Frankfurt, Fukuoka, Guangzhou, Hanoi, Ho Chi Minh City, Hong Kong, Houston–Intercontinental (ends 1 April 2025), Hyderabad, Istanbul, Jakarta–Soekarno-Hatta, Johannesburg–O. R. Tambo, Kathmandu, Kochi, Kolkata, Kuala Lumpur–International, London–Gatwick, London–Heathrow, Los Angeles, Malé, Manchester, Manila, Medan, Melbourne, Milan–Malpensa, Mumbai, Munich, Nagoya–Centrair, Newark, New York–JFK, Osaka–Kansai, Paris–Charles de Gaulle, Penang, Perth, Phnom Penh, Phuket, Rome–Fiumicino, San Francisco, Seattle/Tacoma, Seoul–Incheon, Shanghai–Pudong, Shenzhen, Siem Reap, Surabaya, Sydney, Taipei–Taoyuan, Tokyo–Haneda, Tokyo–Narita, Xiamen, Yangon, Zürich Seasonal: Sapporo–Chitose (resumes 1 December 2024)
Spring Airlines	Jieyang, Shanghai–Pudong
SriLankan Airlines	Colombo–Bandaranaike
Starlux Airlines	Taipei–Taoyuan
Swiss International Air Lines	Zürich
Thai AirAsia	Bangkok–Don Mueang, Hat Yai, Phuket
Thai Airways International	Bangkok–Suvarnabhumi
Thai Lion Air	Bangkok–Don Mueang
Tianjin Airlines	Guiyang
TransNusa	Jakarta–Soekarno-Hatta
Turkish Airlines	Istanbul, Melbourne
T'way Air	Seoul–Incheon
United Airlines	San Francisco
US-Bangla Airlines	Dhaka
VietJet Air	Da Nang, Hanoi, Ho Chi Minh City
Vietnam Airlines	Hanoi, Ho Chi Minh City
XiamenAir	Fuzhou, Hangzhou, Quanzhou, Xiamen
Zipair Tokyo	Tokyo–Narita

Airlines	Destinations
AeroLogic	Bahrain, Bangkok–Suvarnabhumi, Bengaluru, Frankfurt, Hong Kong, Leipzig/Halle
Air Atlanta Icelandic	Dubai–Al Maktoum, Frankfurt, Hahn, Hong Kong, Johannesburg–O. R. Tambo, Liège, Nairobi–Jomo Kenyatta, Seoul–Incheon
Air Hong Kong	Hong Kong
Air Incheon	Haikou, Seoul–Incheon
Air Premia	Seoul–Incheon
ANA Cargo	Tokyo–Narita
Asia Cargo Airlines	Bangkok–Suvarnabhumi, Beirut, Dili, Hanoi, Ho Chi Minh City, Jakarta–Soekarno-Hatta, Kuala Lumpur–International, Macau, Manila, Zürich
Asiana Cargo	Hanoi, Ho Chi Minh City, Seoul–Incheon
Atlas Air	Amsterdam, Liège, Seoul–Incheon, Tokyo–Narita, Xiamen
Cargolux	Anchorage, Bangkok–Suvarnabhumi, Chicago–O'Hare, Dubai–Al Maktoum, Hong Kong, Kuala Lumpur–International, Los Angeles, Luxembourg, Riyadh, Taipei–Taoyuan, Zhengzhou
Cathay Cargo	Hanoi, Hong Kong, Penang, Phnom Penh
China Airlines Cargo	Bangkok–Suvarnabhumi, Manila, Penang, Taipei–Taoyuan
China Cargo Airlines	Bangkok–Suvarnabhumi, Shanghai–Pudong
DHL Aviation	Cincinnati, Darwin, Honolulu, Los Angeles, Melbourne, Sydney, Taipei–Taoyuan
Emirates SkyCargo	Dubai–Al Maktoum, Hong Kong, Melbourne
EVA Air Cargo	Bangkok–Suvarnabhumi, Penang, Taipei–Taoyuan
FedEx Express	Anchorage, Bangkok–Suvarnabhumi, Clark, Dubai–International, Guangzhou, Ho Chi Minh City, Hong Kong, Honolulu, Indianapolis, Jakarta–Soekarno-Hatta, Memphis, Osaka–Kansai, Paris–Charles de Gaulle, Penang, Sydney, Taipei–Taoyuan, Tokyo–Narita
Hong Kong Air Cargo	Hong Kong
Kalitta Air	Bahrain, Cincinnati, Hong Kong, Los Angeles, Melbourne, Nagoya–Centrair, Sydney
K-Mile Air	Bangkok–Suvarnabhumi, Jakarta–Soekarno-Hatta
Korean Air Cargo	Kuala Lumpur–International, Manila, Penang, Seoul–Incheon
My Indo Airlines	Balikpapan, Bandar Seri Begawan, Haikou, Ho Chi Minh City, Jakarta–Soekarno-Hatta, Kuala Lumpur–International, Semarang, Shenzhen, Surabaya
MY Jet Xpress Airlines	Kuala Lumpur–International, Penang
Nippon Cargo Airlines	Bangkok–Suvarnabhumi, Hong Kong, Tokyo–Narita
Polar Air Cargo	Anchorage, Cincinnati, Hong Kong, Nagoya–Centrair, Seoul–Incheon, Taipei–Taoyuan, Tokyo–Narita
Qatar Cargo	Doha, Ho Chi Minh City, Hong Kong, Macau, Melbourne, Nagoya–Centrair, Osaka–Kansai
Raya Airways	Kuala Lumpur–Subang
SF Airlines	Haikou, Hangzhou, Shenzhen
Silk Way West Airlines	Baku, Cairo, Port Moresby
Singapore Airlines Cargo	Amsterdam, Anchorage, Auckland, Beijing–Capital, Bengaluru, Brussels, Chennai, Chengdu–Tianfu, Chongqing, Dallas/Fort Worth, Delhi, Guangzhou, Hong Kong, Johannesburg–O. R. Tambo, London–Heathrow, Los Angeles, Melbourne, Mumbai, Nairobi–Jomo Kenyatta, Shanghai–Pudong, Sharjah, Shenzhen, Sydney, Taipei–Taoyuan
Suparna Airlines Cargo	Shanghai–Pudong, Tianjin
Tasman Cargo Airlines	Melbourne
Tianjin Air Cargo	Nanning, Sanya
Turkish Cargo	Hong Kong, Istanbul, Manila
UPS Airlines	Anchorage, Hanoi, Hong Kong, Louisville, Penang, Seoul–Incheon, Shenzhen, Sydney
YTO Cargo Airlines	Hangzhou, Huai'an

This section is written like a manual or guide. Please help rewrite this section and remove advice or instruction. (November 2023)

Changi Airport was built with ground-transportation considerations in mind from the onset, with the East Coast Parkway beginning at the Benjamin Sheares Bridge built and opened in tandem with the airport, providing a direct link to the city centre. At a distance of about 20 km (12 mi), the expressway was built almost entirely on reclaimed land, thus minimising disruptions to the existing road network in Singapore's eastern coasts.

Despite the four main passenger terminal buildings being relatively close to each other, the CAAS (Civil Aviation Authority of Singapore) decided to build the Changi Airport Skytrain people-mover system to facilitate quicker and more convenient transfers between the terminals for travellers. The system was upgraded in 2007 with new technologies supplied by Mitsubishi, connecting to Terminal 3 and separating checked-in passengers from the general public on distinct tracks.

Terminals 1, 2 and 3 are connected by the free Skytrain service, which operates from 05:00 to 02:30. During non-operational hours, travellers in the transit areas may transfer within the terminals by foot via the inter-terminal travelators. For travellers in the public areas, a free shuttle bus service will connect the three terminals.

A complimentary 24-hour airport shuttle bus service runs between Terminal 3 and Terminal 4 in both the public and transit areas. The journey takes approximately 8 to 10 minutes.

The airport is connected to the Mass Rapid Transit (MRT) network via a two-stop branch of the East West line from Tanah Merah MRT station, consisting of two stations: Expo, serving the nearby Singapore Expo site; and Changi Airport. Changi Airport MRT station is located underground between Terminal 2 and Terminal 3. Direct, one-train service to the downtown and western parts of Singapore was initially in operation when the station opened on 8 February 2002. This was replaced by the current shuttle service between Tanah Merah and Changi Airport via Expo on 22 July 2003, when it was found that passenger demand for this route was low.

As announced in the LTA's Land Transport Masterplan, the new Thomson–East Coast line will be extended to Changi Airport Terminal 5 and to the current Changi Airport station, with the current EWL Branch line being converted to be part of the TEL.

There are seven bus services operated by SBS Transit, SMRT Buses, Tower Transit Singapore and Go-Ahead Singapore, making a loop starting from Terminal 3 to Terminal 1, and Terminal 2. Only four bus services will continue to Terminal 4 – Services 24, 34, 36 and 110. Bus stops are located at the basement bus bays of Terminals 1, 2 and 3. For Terminal 4, the bus stop is located next to Car Park 4B.

Coaches to and from Johor Bahru are also available. Operated by Transtar Travel, the TS1 service will start at coach stands of Terminals 1, 2, and 3, and end at Larkin Terminal.

There is also a free shuttle bus service plying between Changi Airport (T3) and Changi Business Park. This service is a nine-stop route, running from Mondays to Fridays, except public holidays.

In addition to buses for passengers serving the terminals, SBS Transit also provides bus services for staff at the Changi Airfreight Centre. Due to the large distance covered by the complex itself (over 2 km (1.2 mi) end-to-end), bus stops are located inside the restricted-access area, and auxiliary police routinely board at the final stop before the complex (at the Police Pass Office) to check passengers for their right to enter.

Operator	Package	Routes
SBS Transit	Seletar	24
	Sengkang-Hougang	27
	Serangoon-Eunos	53
Go-Ahead Singapore	Loyang	34, 36
SMRT Buses	Sengkang-Compassvale	110
Tower Transit Singapore	Sembawang-Yishun	858, 858B

Taxis are available at designated stands in the arrival halls of each terminal. An airport surcharge applies to all trips originating from the airport. Additionally, limousine and other transportation options can be accessed through the Ground Transport Concierge.

All pick-ups by private transportation occur at the arrival pick-up points of each terminal. Car rental counters are located in the arrival halls of each terminal.

A new 3.5 km (2.2 mi) Changi Airport Connector, which opened on 11 October 2020, links the airport to East Coast Park. Bicycle rental services are available along with other facilities such as pay-per-use showers and bicycle lockers. Along the way is a 1 km (0.62 mi) long Changi Jurassic Mile where there is a permanent display of life-sized dinosaurs.

As one of the world's busiest airports by international passenger and cargo traffic, it has been rated as the "World's Best Airport" by Skytrax a dozen times, and was the first airport in the world to hold the accolade for eight consecutive years. It has also been rated as one of the world's cleanest airports and highly rated international transit airports.

• On 26 March 1991, Singapore Airlines Flight 117, operated by an Airbus A310, was hijacked by four terrorists. The flight landed in Changi Airport at 22:15. The Singapore Special Operations Force stormed the aircraft, on the morning of 27 March. All four hijackers were killed, with only minor injuries among the 123 passengers and crew, who were held hostage for more than eight hours.
• On 4 November 2010, Qantas Flight 32, operated by an Airbus A380-800, suffered an uncontained engine failure and made an emergency landing at Changi Airport. Upon landing, one of the engines could not be shut down due to ruptured control cables and had to be doused for three hours by airport firefighters to forcefully shut it down. There were no crew or passenger injuries, and all 469 people on board survived this incident.
• On 27 June 2016, Singapore Airlines Flight 368, a scheduled service from Changi Airport to Milan, Italy carrying 222 passengers and 19 crew, caught fire shortly after it landed. Approximately three hours into the flight, the Boeing 777 turned back after the pilot received an engine oil warning message. Shortly after landing, the right engine and wing were ablaze, with flames engulfing the right side of the jet. No one was injured.
• On 16 May 2017, a fire broke out at the departure hall in Terminal 2. The fire caused 40 flights at Terminal 2 to be delayed and diverted to Terminal 3. Terminal 2 was closed from 17:30 to 22:45.
• On 29 November 2017, a tow tug towing a Singapore Airlines Boeing 777-200 caught fire. This fire was promptly put out by the airport's emergency services. A member of the towing crew was in the aircraft's cockpit when the fire occurred; the crew member evacuated through the aircraft's emergency slides. The aircraft was substantially damaged by the fire and written off.
• On 6 February 2018, a KAI T-50 Golden Eagle, part of the Black Eagles aerobatic team taking part in Singapore Airshow 2018, veered off the runway during takeoff and crashed. The resulting fire was put out by emergency services and the pilot was treated for minor injuries. Runway 02L/20R was closed as a result and caused delays at the airport.
• On 10 September 2023, Air China Flight CA403, a scheduled flight from Chengdu–Tianfu to Singapore, carrying 146 passengers and 9 crew, encountered smoke in the forward cargo and lavatory four hours into the flight. The Airbus A320 made an emergency landing on runway 20L after the pilot received a warning message. Shortly after landing, the left engine fire was put out and nine passengers sustained minor injuries.

• Airport Logistics Park
• History of Changi Airport
• Infrastructure of Changi Airport
• Jewel Changi Airport
• Kinetic Rain
• List of airports with triple takeoff/landing capability
• List of busiest airports by passenger traffic

• Winchester, Clarence, ed. (1938), "Singapore's great airport", Wonders of World Aviation, pp. 128–130, illustrated description of the newly opened Singapore Airport
• "Leadership transition at Changi Airport Group". Changi Airport Group. 9 April 2024. Retrieved 9 April 2024.

Media related to Singapore Changi Airport at Wikimedia Commons

• Singapore Changi Airport official site
• Singapore Changi Airport JetQuay CIP Terminal official website
• Virtual reality view of Changi Airport Terminal 3
• 360° image of Changi Airport Terminal 3
• Accident history for SIN at Aviation Safety Network
• Current weather for WSSS at NOAA/NWS