Avianca is having a nice sale from Santiago de Chile to Aruba from $989!.
If you credit the flights to Aegean Miles & Bonus you would obtain 100% or 6470 Miles. Avianca LifeMiles and Lufthansa Miles & More credits at 150% so a total of 9706 miles. Most other Star Alliance programs credit at 125% or 8088 miles.
Avianca Airbus 330 Business Class
Avianca Airbus 320 Business Class