I doubt that any helicopter can fly from Antarctica to Australia.
About 30 minutes
45 hours
Not enough information has been given to answer the question. How fast is the helicopter going per mile?
It takes about 13 hours and 30 mins.
4 and 1/2 hours
It should take you about 7 hours and 47 minutes according to Google Maps.
About 20 minutes, after you have about 5 minutes of fly time.
It takes about a day with helicopter or speed boat.
10 to 30 min. so 40min.
It should take about the same as a airplane
Pushing Air downwards to fly. Rapidly spinning long, thin blades push air downwards to lift the helicopter up