Not sure if this is a deal worth posting (or if it's been noted already), but I've grabbed it and thought I'd share:
One-ways from major NZ airports to many US cities for ~$383-400 via SYD (on Qantas w/ AA code) and LAX. Availability in June, October, November, January, February, March.
Example:
https://goo.gl/flights/qqqF
$386 for 11212 on the CHC - PHL route, for 3.4 cpm. Requires getting down to NZ, but is a cheap way back to the states if you happen to be on that side of the world already.