Auckland Airport has forecast annual international visitor growth that could be worth $19 billion to the tourism industry by 2025.
The airport's Ambition 2025 document forecasts growth of between 3.6 per cent to 5.5 per cent resulting in the number of overseas tourists growing from 2.7 million a year to 5.2 million.
The forecasts are in line with a New Zealand Tourism Industry Association growth framework which targets 6 per cent annual growth in the next decade and comes as airlines prepare to increase services to lucrative Asian markets this summer.
Auckland Airport chief executive Adrian Littlewood said New Zealand tourism's best growth opportunities for international visitors appeared to lie in Australasia, Asia and the Americas.
"Australia will always be a key market to New Zealand because of its proximity. Within Asia, China remains the stand-out prospect for growing tourism. While the USA remains the important key market in the Americas, the emerging prospects of South America cannot be ignored," he said.