Libertador Gral D Jose De San Martin Airport (PSS)

Libertador General José de San Martín Airport (PSS), also known as Posadas Airport, is the primary aviation gateway serving the Misiones Province in northeastern Argentina, located approximately 4.7 miles (7.5 km) southwest of the city center. The airport operates from a single, modern passenger terminal designed for high efficiency and intuitive navigation, primarily connecting the region to major national hubs like Buenos Aires via Aerolineas Argentinas. It acts as a critical infrastructure link, situated near the international border with Encarnación, Paraguay, and serving as a vital hub for regional commerce and tourism.

The terminal infrastructure provides a range of essential amenities across its unified layout, featuring a central landside cafeteria ('Confitería') that serves traditional Argentine snacks, sandwiches, and refreshments. Travelers have access to comfortable air-conditioned waiting areas equipped with digital device charging stations, several retail kiosks selling local souvenirs and travel essentials, and an on-site ATM for financial services. The facility is fully accessible, providing dedicated assistance for passengers with reduced mobility and offering free high-speed Wi-Fi throughout the complex.

Ground transportation to central Posadas is well-supported by official taxi ranks and 'remise' services situated directly outside the terminal exit, with the journey typically taking 15 to 20 minutes. The most economical option is the municipal Bus Route No. 28, which provides a regular link between the airfield and the city's main districts. Several major car rental agencies maintain desks directly within the terminal, which is the preferred choice for visitors exploring the nearby San Ignacio Miní Jesuit ruins or the scenic Parana River coastline. Travelers are advised to arrive at least 2 hours before domestic departures to facilitate standard security and document checks.