Silvio Pettirossi International Airport (IATA: ASU, ICAO: SGAS) is an international airport in Luque, Paraguay, which serves Paraguay's capital city, Asunción, and indirectly serves the nearby city of Clorinda, Formosa, in Argentina. The airport is named after Paraguayan aviator Silvio Pettirossi. Between 1980 and 1989, it was known as President Stroessner International Airport, after the former head of state, Alfredo Stroessner.

It is the main international hub for LATAM Paraguay and Paranair.

Some of its facilities are shared with the Ñu-Guazú Air Force Base of the Paraguayan Air Force.

The airport was inaugurated on 11 June 1938. The airport's runway was constructed in the 1960s, and was resurfaced in 1985.

Spanish airline Iberia provided direct flights to Asunción from Madrid from around 1968 until the mid-1990s. Lufthansa flew once a week from Frankfurt to Asunción from 1971 to 1980, with DC-10 service starting in 1974. For both airlines, the flights included multiple stops in destinations throughout South America. Also, between the early 1990s and 1996, Lineas Aereas Paraguayas flew nonstop to Frankfurt with its DC-10.

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In November 2004, the director of Direccion Nacional de Aeronautica Civil (DINAC), Eustaquio Ocáriz, told ABC Color that the airport's runway, which had repair work started in 2001, but halted due to lack of funds, would be completed by the early months of 2005.

On 31 July 2007, at 05:10am, a group of five men stole US$1,000,000 from a money exchange on the bottom floor of the airport. One of the robbers, Juan Pablo Ortigoza, was detained, along with others. Another robber was captured in Encarnación. It was later discovered that the robbery was planned in Asunción's Tacumbú prison. One of the arrested stated they received US$60,000 for the robbery. The money was going to be sent on a flight to Uruguay.

In May 2008, a report concluded that Paraguay's aeronautic systems were in a critical state and needed to be replaced. In November 2009, new instrument landing systems began operating. The equipment was acquired at a cost of €967,400. The previous system that was replaced was installed in 1980. The implementation of the system made Paraguay up to date with the requirements of international security as a member of the OACI.

In January 2013, various improvements were made to the terminal. By 2015, some airlines had ceased operations at the airport, including American Airlines. On 17 December 2015, Air Europa began service between Pettirossi and Madrid, Spain, creating the first direct connection between Paraguay and Europe in 21 years.

In 2017, airport infrastructure specialist Carlos Achucarro estimated that the airport would require expansion before 2024. In January 2018, DINAC reported that the airport has seen a 15 percent rise in travellers from 2013 to 2017. The airport also saw an increase in flights, from 20 daily flights to about 60 flights by 2018.

Pettirossi Airport ceased operating commercial flights for 7 months due to the COVID-19 pandemic. In October 2020, DINAC announced a ceremony for the resumption of flights.

In November 2020, drugs were found by agents of the National Secretary of Antidrugs. They were disguised as parcels and were to be sent to various countries. In February 2021, plans for a second terminal were unveiled, to be started in 2022. In October 2021, a new route, operated by Paranair, was announced between Pettirossi and Santa Cruz de la Sierra, Bolivia.

The original passenger terminal, located near threshold 02, is now instead used by Grupo Aerotáctico (GAT) of the Paraguayan Air Force. The current terminal began service on 20 March 1980.

The terminal building is split into two international concourses: the south concourse having gates 1 to 4, and the north concourse having gates 5 and 6. On 26 May 2023, renovation works of the north concourse were completed, greatly expanding the arrivals hall.

Airlines	Destinations
Aerolíneas Argentinas	Buenos Aires–Aeroparque
Air Europa	Madrid
Avianca	Bogotá
Azul Brazilian Airlines	Campinas, Curitiba Seasonal: Florianópolis, Recife
Boliviana de Aviación	Santa Cruz de la Sierra–Viru Viru
Copa Airlines	Panama City–Tocumen
Gol Linhas Aéreas	São Paulo–Guarulhos
JetSmart Argentina	Buenos Aires–Aeroparque
LATAM Paraguay	Lima, Santiago de Chile, São Paulo–Guarulhos
Paranair	Buenos Aires–Aeroparque, Ciudad del Este, Córdoba (AR), Montevideo, Salta (resumes 12 February 2025), Salto, San Salvador de Jujuy, Santa Cruz de la Sierra–Viru Viru Seasonal: Florianópolis, Punta del Este, Rio de Janeiro–Galeão

Airlines	Destinations
Avianca Cargo	Miami, Montevideo
LATAM Cargo Brasil	Medellín–JMC, Miami

Following is the number of passenger, aircraft and cargo movements at the airport, according to the Dirección Nacional de Aeronáutica Civil (DINAC) reports:

Year	Passenger	Aircraft	Cargo (t)
2023	1,027,766 17%	48,460 1%	12,901 10%
2022	876,625 102%	48,108 8%	14,308 7%
2021	433,732 39%	44,389 25%	15,313 31%
2020	311,813 75%	35,405 34%	11,704 9%
2019	1,239,403 2%	53,353	12,811 4%
2018	1,211,576 3%	53,443 6%	13,398 3%
2017	1,180,111 14%	50,485 5%	13,788 2%
2016	1,033,168 13%	48,025	14,110 16%
2015	910,554 1%	47,942 4%	12,199 11%
2014	915,425 10%	46,028 15%	10,954 16%
2013	835,323 4%	39,974 8%	9,444
2012	868,534 6%	43,336 5%	9,491 6%
2011	823,207 12%	41,462 15%	8,986 34%
2010	733,810 23%	36,030 25%	6,729 22%
2009	595,145 6%	28,933 3%	5,434 23%
2008	631,338	29,683	7,054

• 16 June 1955: a Panair do Brasil–owned Lockheed L-149 Constellation, with registration PP-PDJ, was operating flight 263 from São Paulo-Congonhas to Asunción. It hit a 12m tree while on its final approach to land at Asunción. Part of the wing broke off, the aircraft crashed and caught fire. Of the 24 passengers and crew aboard, 16 died.
• 27 August 1959: an Aerolíneas Argentinas–owned de Havilland DH-106 Comet 4, with registration LV-AHP, was operating a flight from Buenos Aires to Asunción. While on approach to Asunción, bad weather caused a forced landing close to the airport. A crew member and a passenger died.
• 29 August 1980: a Transporte Aéreo Militar–owned Douglas C-47B, with registration FAP2016, crashed on approach to Asunción. The aircraft was on a flight to Ayolas when an engine failed shortly after take-off and the decision was made to land back at Asunción. One person died.
• 4 February 1996: a cargo LAC Colombia–owned Douglas DC-8-55F, with registration HK-3979X, was on an empty positioning flight around Asunción prior to a flight from Asunción to Campinas. At VR power was reduced on no. 1 engine and, after rotation, also on the no. 2 engine. With the gear still down and flaps at 15° the aircraft lost control and crashed on a playing field 2 km past the runway. The crew possibly used the positioning flight as an opportunity for crew training. All four occupants of the aircraft and 20 persons on the ground died.

The airport, located within the municipality of Luque, is located 10 km (6 mi) from downtown Asunción. It may be reached via the Aviadores del Chaco Avenue, which runs adjacent to nearby Ñu Guasú Park. Bus line 30-A links Asunción's downtown with the airport terminal.

• List of airports in Paraguay
• Transport in Paraguay
• List of airports by ICAO code: S#SG - Paraguay

 This article incorporates public domain material from the Air Force Historical Research Agency

• Airport information for SGAS at Great Circle Mapper. Source: DAFIF (effective October 2006).
• Current weather for SGAS at NOAA/NWS
• Accident history for ASU at Aviation Safety Network