http://www.delta.com/travel/sp_offers/santiago_1113/index.jsp

Atlanta to Santiago, Chile for $329 return. No minimum stay requirements and double miles as well.

9440 miles x double miles = 18880
1.7 cents per mile (In my excellent deal book)

I think this one also comes up as a U fare. The double miles promotion excludes S,T and U fares.

------------------
Time..... is on my side.