Originally Posted by Viajero Joven
For this one, I'm looking at AA metal in and out- a nice and easy weekend.

It's one of those Fly Free certs...
Here's another suggestion, if the cert allows open-jaw:
Fly AA to EZE, go by bus to SCL and return from SCL with AA.
The bus EZE-SCL (or the other way around, if you want to see the Pampa by day) takes you from city center to city center in less than 24 hrs, and it is just as luxurious, easy and fun as the one I described before, with the added benefit that you get to cross the Andes by road, an interesting experience. Highly recommended. If you have the time break the trip in Mendoza (great place for a short visit).