It depends on where in the US you are starting from.
what are you taking to get there
About 3h45.
6
You need 19 hours to flie from Rome to Sidney.
It would take 1 hour.
It is about 17 hours.
it depends on your flight.
2h.25min
17 hours blol
7 hours
30Hours 25min Auckland to Rome, Via London Heathrow.
Rome is a city in Italy, so you would need an Italian passport.