Auckland International Airport, which is targeting Asian arrivals to stoke growth over the next decade, flagged an 11 per cent increase in international arrivals in the month of June over the same month last year.
The increase was so large because of the Chilean ash cloud that caused flight cancellations in June 2011.
The latest monthly update completes a full 12 months of AIA's financial year, in which it processed more than seven million international passengers, excluding transits, for the first time.
China and Australia led the growth, with the 66,098 increase in the number of Australian visitors in the 12 months to June 30 "the largest increase in visitors from a single country".
A total of 715,115 Australians passed through AIA over the 12 months, compared with 649,017 in the previous year.