In 2026, May and June are consistently the cheapest months to fly to New Zealand. This period marks the transition into the "low season" or late autumn/early winter. Tourist demand drops significantly as the summer weather fades and the ski season hasn't yet reached its peak in Queenstown. Travelers can often find round-trip fares from the U.S. or Europe that are 25-35% lower than the peak December/January prices. October and November (spring) serve as a secondary "shoulder season" with moderate prices and blossoming landscapes. If you are flying from the Northern Hemisphere, remember that New Zealand’s seasons are reversed; flying in May means preparing for cooler, rainier weather, but it also allows for crowd-free visits to popular sites like Hobbiton or the Milford Sound, which are often booked out months in advance during the more expensive summer months.