The trip cost does not include international airfare.

A nice site I have used in the past and highly recommend is www.kayak.com They have really nice fares. You want to fly into Ezeiza international airport, in Buenos Aires. The airport code is EZE.

You should know that it is best to do an international ticket as ONE SINGLE TICKET (wherever it is you want to fly FROM allll the way to Buenos Aires), as it is the only way to guarantee the airlines will hold up their end of the deal if there are any flight delays, misplaced baggage, new routing, etc. It will also allow you to keep track of your entire itinerary under just one single confirmation number. Just some tricks I learned from friends along the way which I figured I should pass on.

Ah, you have miles you say? And you want to use them to get to Argentina? Nice! Figure out the details, and let me know your arrival flight.

The trip does includes a one-way flight with Aerolineas Argentinas from Bariloche back to Buenos Aires after our time down in Patagonia. This is a short internal flight with limited food service. (On our way down to Patagonia from Buenos Aires we are taking a very cool 5-star long-distance bus. Think rockstar road tour. Keep reading the details here on the site and it will make sense).