BOS-SCL offers:

US Airways Dividend Miles; Off-peak Economy; 35000; Own

As far as I am aware, AC is the only *A North American carrier that flies to SCL, so US-Own isn't a valid option.

Would be nice if there were three checkboxes before the search to narrow the options (leaving all three as checked by default would accomplish the same as the current state): Y, J, F

Also, since we're only allowed O & D, the "map it" feature is pretty useless for something like BOS-SCL, since there is no non-stop service on any carrier.

Great idea for a tool though - look forward to seeing the mileage/km-based programs added.