Originally Posted by
Syzygies
Amex will also front you up to 15,000 points. However, if you don't earn them within a year, you end up paying a stiff rate for the rest.
My Amex spending is predictable, and I almost used this recently.
IIRC it is 60,000 miles, as I might do this for a trip to Asia soon. I'm only doing it because I've got card upgrade points coming down the pike soon.