South America has the best California Airline Ticket Sales (CATS) today. Copa has low fares to Ecuador, Peru and Chile. US Airways has low fares to Brazil.
Santiago Chile SCL is probably the best discount of the fares, since this airport has not been on sale much over the past two months. Copa has LAX-SCL at $618.50 round trip in first week of June. Every date is available for $618.50 from August 16 to December 6, 2015.
Copa Airlines Los Angeles – Panama City – Santiago, Chile
$618.50 Economy T class June 4 –16, 2015
T class fares earn 50% miles with United Mileage Plus. Flight miles are 11,969, so almost 6,000 miles with this fare.