Hmmm, not seeing anything for Jetstar. Hawaiian requires 6 months (I'd just assume that all airlines do at this point) but it does look like they have ZED Lows for all passengers in all cabins, including first, which is really nice.

You do know that UA flies to Australia, right? I know the loads can be bad, but even my old supervisor got F on a SYD-SFO flight one time, and she was flying at United Express priority!