Originally Posted by
invisible
Did quick search but only Thai comes as a option. Are there any other Star Alliance members flying this route?
Not where you're likely to find award space in premium cabins which can be booked using UA points.
Originally Posted by
invisible
Do I understand correctly that SIN-AKL-CHC with two days at Auckland on way in won't require extra miles?
So long as there is also a return from CHC to SIN then, yes, the stopover does not require extra points.
Originally Posted by
mduell
SQ does, but UA pulled their availability from the website. Call for availability.
The OP wants premium cabin seats. I would not expect to get those on SQ metal using UA points. Even if you call.