Oh man, heading to Argentina in two weeks and bought my tickets a week or two ago. I wonder if it's too late to buy travel insurance that covers for airline bankruptcy. Is there a formal bankruptcy system in Argentina, or do companies just cease operating? Are walk-up fares on Aerolineas pretty much the same as advance purchase fares?

Also, any idea how long it takes to cross from the Argentina side of Iguazu back to the Brazil side (customs, immigration, and all that)? Is it easy to go back and forth? Thinking about just staying on the Brazil side, but we are flying out from the Argentina side to Mendoza (hopefully!).

Gaucho, just want to say thanks for all of your information in this thread. It's helped a lot as I've lurked here planning my trip!