I'm planning a trip to Argentina, flying in to EZE and looking to do Iguaza Falls, El Calafate and perhaps Santiago as well. It looks like the only options for a few of the flights I want (e.g. EZE/AEP-IGR) are Aerolineas Argentina or LAN.

I know GOL is now a "SkyMiles partner" per the promotion e-mail I got from DL, but is there any way to burn SkyMiles on intra-South America flights?