If you're the type to be easily put off by connections, don't bother reading any further because this itinerary requires two of 'em. For those down to do whatever it takes to fly cheaply, San Francisco to Buenos Aires for $657 round-trip is a guh-reat fare!
Searching CheapOair, we spotted seats departing SFO on Saturday, September 12, returning from EZE on Sunday, September 27. Flights connect via Cancun CUN and Sao Paulo GRU on the outbound, Lima LIM and Mexico City MEX on the return. Travel is available around these dates only, give or take a few days.
Need a room in Beunos Aires? Here's what's available for the above dates on Hotelwatchdog.