There are two international airports in Buenos Aires. Ezeiza International Airport (EZE), formally known as Ministro Pistarini International Airport country's largest international airport and Aeroparque Jorge Newbery Airfield (AEP).
Aeroparque is an international airport located in Palermo neighbourhood convenient to some of the best part to stay in Buenos Aires. While there are no direct flights to Aeroparque from the United States, the location makes getting in and out of Buenos Aires and getting to Salta much easier.
All flights to the Salta Province leave from Aeroparque.