Bem Venido, Bienvenidos, this is the best of Latin America. Well anyways 4 places that I want to visit. Rio de Janiero, Iguazu Falls, Buenos Aires and Santiago de Chile. Varig you can accrue miles with Star-Alliance and Aerolineas Argentinas with One-World members American Airlines and Iberia. Also note that there are three different airports in Iguassu Falls. 1 on the Brazil side, 1 on the Argentine side and one in a city about 10 miles away in Paraguay called Ciudad del Este (not a very friendly place from what I've read). So the Varig flight and the Aerolineas Argentinas flights are out of different airports. There are shuttles across the border, don't worry.
Flight: United Airlines flight 733 on a Boeing 767-300 Jet From: Los Angeles, CA (LAX) To: Miami, FL (MIA) 10:16pm
Connecting To... Flight: United Airlines flight 991 on a Boeing 767-300 Jet From: Miami, FL (MIA) 11:50pm To: Rio De Janeiro, Braz (GIG) 11:20am (Next Day) (5-6 Days in Rio)
Flight: Varig Airlines flight 2251 on a Boeing 737-300 Jet 1 45 min Stop in Sao Paulo, Brazil From: Rio De Janeiro, Braz (GIG) 11:15am To: Iguassu Falls, Brazi (IGU) 2:35pm (2-3 Days @ Iguassu Falls)
Flight: Aerolineas Argentinas flight 1723 on a Boeing 737-300 Jet From: Iguazu, Argentina (IGR) 12:55pm To: Newbery-Buenos, Argentina (AEP) 2:45pm (4-5 days in Buenos Aires)
Flight: Aerolineas Argentinas flight 1450 on a McDonnell Douglas MD88 Jet From: Pistarini-Bueno, Arg (EZE) 9:40am To: Santiago Scl, Chile (SCL) 11:55am (3 Days in Santiago)
Flight: United Airlines flight 996 on a Boeing 767-300 Jet From: Santiago Scl, Chile (SCL) 10:00pm To: Miami, FL (MIA) 4:30am (Next Day) Connecting To... Flight: United Airlines flight 732 on a Boeing 757-200 Jet From: Miami, FL (MIA) 6:40am To: Los Angeles, CA (LAX) 9:26am
NOTE: There are direct flights from LA-Rio (with a stop in Sao Paulo) on Varig and from Santiago-LA (with a stop in Lima) on Lan Chile. However, this trip is more cost effective.