New Zealand is the national carrier Air New Zealand and is the main way of traveling by plane in New Zealand. New Zealand next big airline Qantas is Australia's national airline.
There are other key players in the competitive trans-Tasman market (including the market between New Zealand and Australia that crosses the Tasman Sea) they Jetstar, Virgin Pacific, Freedom and Emirates.
Virgin, Jetstar and Freedom are the budget airlines. Jetstar is a company that It is owned mainly by Qantas and Freedom is mainly owned by Air New Zealand. The three airlines are the airlines you would concentrate your search for cheap flights to Australia, New Zealand, but sometimes the key players are offering better deals, so do not think that because they are the cheapest budget. The airlines keep prices competitive so you as a traveler get some good deals when you "shop around".
New Zealand has many small> Airlines, you can see some of the wonders of New Zealand including Origin Pacific and other scenic flight airlines from the smaller towns and cities.
Security standards at airports and airlines, owned by New Zealand air travel among the highest in the world, with strict air safety regulations. On arrival in New Zealand there are strict rules and instant fines for bringing undeclared food or something that could effect the delicate New ZealandEnvironmental and biosafety in the country.
Most airlines leave from New Zealand airports are not as strict with the check-in times like other countries with a higher international security concerns.
Have fun at the New Zealand sky. You will enjoy the friendliness of the staff of the airline New Zealand and the services that you will receive.