Fastest or cheapest ? There's no really cheap flights any more.
Fastest is AirNZ either via LA or Honkers – i think LA is one hour quicker but honkers means no LA security hassles – thats the way I go.
Christmas is high season as its our summer holiday and everyone also wants to come back from working in a pub in london for that Xmas bach experience with their family 😉 So don't expect cheap deals. Best bet is decide what your priority is – speed, stopovers, price and work around that.
Air NZ – via LA HK direct to Akl
Emirates – via Dubai & somewhere in Oz usually Melb/brisbane
Singapore-via singapore surprisingly and Oz then into AKl or ChCh
Thai – via bangkok and Oz as well i think ?
Why is LA so miserable ? 1) You have no lounge access , you get shunted out andf back through a massive security queue while being made to feel like a criminal, 2) you have to submit yourself to iris scans etc etc 3) the transit lounge would be illegal for animals.
HK a much more pleasant experience, short security queue, quick shower and a bite then back on the plane. Theres a pay shower lounge upstairs if you don;t have airline lounge access.