No, and I've been screaming silently for years about this. There is no west coast flight to Deep South America, except RG to GRU from LAX, which is really out of the way for most of deep South America. From north of LAX, it is even worse, because I have to add on a good 5 hours just to get on the Lan flight to/from SFO.

I would think that UA could support a 767 service SFO (or LAX) SCL / EZE. One stop, no plane change to either EZE or SCL, or do the trip in a loop. (I think AC does a similar thing from YYZ).

Someday, maybe....