I've been compulsively checking flights to South America in December/January, and today it appears that DL opened up a bunch of B/E SS inventory TO SCL and EZE. I didn't verify all the dates, but the few I did check appeared to work.

However, the flights back don't appear that open for returning from SCL, but for any PMs out there thinking about heading down there during the summer, just letting you know!

PS Back from GIG looked pretty open in January, too!