Fare alert for ultra low $170 round trip tickets from Washington Dulles IAD to Santiago, Chile SCL on Star Alliance Copa Airlines for departures from March to June 2017. These flights are searchable on Google Flights. There are about 30 or so departure dates between March and June with low $170 round trip ticket price at 6am Eastern Tue Nov 29.
Copa Airlines Washington DC IAD – Panama City PTY – Santiago, Chile – PTY – IAD
These flights book in Copa economy T class for 100% miles in programs like Air Canada, Copa and SAS and 50% miles in most Star Alliance programs.