The original question is not specific enough to provide an appropriate answer.
To provide such an answer it would be necessary to know (at least) :-
What is the exact, starting location in Los Angeles?
What is the exact, destination location in Auckland?.
Is the distance required the measurement between the two locations of :
- the shortest line, or
- the shortest, available, surface, travelling distance, or
- the normal, commercial, flying distance, or
- the estimated, calculated difference with reference to latitudes, or
- some other nonsense?
Apart from all that, I can't imagine why the OP needs this information (and doesn't even need it accurately), or why he/she could not have found it via a web search.