American has a low fare of $764 round trip from San Francisco or Los Angeles to Santiago, Chile SCL for departures over the next six weeks. United also has $764 from San Francisco, but fares are in $800s from Los Angeles. Copa and Avianca have some dates with fares in the $730s to $750s, but more route stopovers.
Santiago SCL does not go on sale too often for California routes. I have seen American Airlines drop the fare to low $700s twice before in 2015. Copa had a fare at $619 round trip for LAX-SCL last May.
San Francisco SFO – Miami MIA – Santiago, Chile SCL – Dallas DFW – SFO
$763.60 Monday November 9 – Saturday November 21
Flight Miles: 13,037 miles for 5.86 cents per EQM.
San Francisco SFO – Houston IAH – Santiago, Chile SCL – IAH– SFO
$763.60 Monday November 9 – Sunday November 15
Flight Miles: 12,561 miles in economy N class. $656 base fare.
Note: Earn 50% flight miles when United N fare ticket purchased from online travel agency like Expedia.