KrisFlyer miles aren't limited to just Singapore Airlines- they can also be used to upgrade partner flights. How does this work, and is it a good use of your miles?
It is a fact, universally acknowledged, that SQ does not give free upgrades unless it absolutely, absolutely has to. My father, a PPS Solitaire member of 20+ years, can count on one hand the number of free upgrades he has received in that period.
The unspoken reason for refusing to...