Next three weeks?

With that I assume you will not be able to travel the last 10 days or so of April.

In any case the AKL-SYD flight on LAN departs at 05:50 and costs AUD284. That's 80 SC's, but you problably need to file for the points/SC's. (http://www.flyertalk.com/forum/qanta...an-flight.html)

A one way SYD-AKL in April will cost from AUD250.