Originally Posted by
UAPremExecflyer
The mileage requirements for award tickets are determined by individual FFPs.
As to which airlines fly LAX-SIN, there are multiple options (depending on how far out of the way you want to travel):
SQ
UA
NH
AC
CA
BR
TG
Don't forget you can have multiple airlines on one reward, with connections,
and you can also transit through Europe.
Add NZ , OZ, LH, LX, to the list, and probably some more as well.