Santiago, Chile is on sale for $708 from UA and AA hubs across the USA for travel from May 2015 into 2016 in a major fare battle. United has low fares from American Airlines hubs like Phoenix, Philadelphia and Charlotte, while American Airlines has low fares from United hubs like San Francisco, Newark and Washington Dulles.
Lowest fares at $708 are Monday to Thursday departures, available during every month into early 2016 with July 2015 low fare at $758.
Phoenix PHX – SCL Santiago, Chile
United Airlines $707.60 round trip June 23-30, 2015
San Francisco SFO – SCL Santiago, Chile
American Airlines $707.60 round trip June 23-30, 2015
SFO-SCL is a good miles earning ticket on American Airlines at 13,037 miles round trip. Route via MIA both directions for an additional 400 miles.