Aeromexico and LATAM are putting flights from San Francisco, California to Santiago, Chile on sale. Flights start at $608 after taxes, although I’ve so far only found this price for travel from May 8-31. Flights can also be found for the low $700’s from April through May.
Santiago is one of my favorite cities in the world, and one I’ll be visiting again in a few weeks.
To find this deal, use Google Flights and search for flights between SFO and SCL.