Sorry it has taken a few days, I was waiting for a response from another department.

LHR-HKG 11 hours 45 minutes

HKG-AKL 10 hours 35 minutes

AKL-CHC 1 hour 20 minutes

AKL-NAN 3 hours 5 minutes

NAN-LAX 9 hours 15 minutes

LAX-LHR 10 hours 30 minutes

I hope this information is what you were looking for. If I can help you with anything else, please let me know.

Many thanks,

Cheryl, your editor