If you disembark your plane; yes.
The only airline flying the Airbus A380 to Auckland is Emirates, on their Dubai-Sydney-Auckland route.
You typically go through customs when flying to Europe after you arrive at your destination airport.
When flying to Europe, you go through customs at the first airport you arrive at in the European Union.
The shortest flying trip would be around 15 hours with Qantas Airlines if you connect in Sydney .
Depends on where you're flying between. The most common flight, Sydney/Brisbane to Auckland, is approx 3hrs flying time. It is slightly more (15-30 mins) flying in the other direction!
Yes, passengers flying within Europe may have to go through customs depending on the country they are traveling to and from. It is important to check the specific customs requirements of each country before traveling.
Yes.
five hour flying from sydney to Tonga
After you land, on your port of destination.
Yes, travelers flying from Puerto Rico to the mainland United States are not required to go through customs as Puerto Rico is a U.S. territory.
Well, let's say for instance Sydney to Santiago or Sydney to Buenos Aires LAN Airlines flies Sydney - Santiago with a short stopover in Auckland, New Zealand Aerolinas Argentinas flies Sydney - Buenos Aires nonstop on selected days
The flight time from Auckland, New Zealand to China is about 13 hours, 21 minutes.