The "best" airport depends on your itinerary, but Auckland Airport (AKL) is the primary gateway for international travelers in 2026. As the country's largest and busiest hub, it offers the most frequent long-haul connections from the US, Asia, and Australia, and often has the most competitive pricing. If you are planning to explore the South Island immediately, Christchurch Airport (CHC) is an excellent alternative, serving as a hub for flights from Australia and Singapore. For those specifically targeting a ski holiday or the "adventure capital" of the world, Queenstown Airport (ZQN) offers a stunning scenic landing, though international flights there are primarily limited to Trans-Tasman routes from Australia. Most travelers choose to land in Auckland, spend a few days in the North Island, and then take a domestic hop to the South Island, as domestic air travel in New Zealand is very frequent and relatively affordable.