AM: Various Canada - South America in biz under $1400 CAD
I've been keeping track of this itinerary on momodo for the past few months for a trip in mid September. The trip is less likely now, but Momodo told me the price had dropped to about 2K, and I found an even better price on GF for the same itinerary. I've never seen this route so cheap for business class, with reasonable stopovers in MEX. MEX-EZE on 787-9.
Unable to post URL's or attachments yet, but this was easily found on GF. My trip went from Sept 4-25. I didn't search for alternate departure or arrival points.