Air New Zealand lifted passenger numbers by 2.7 per cent in August as an increase in volumes on domestic and trans-Tasman routes more than made up for a decline on long-haul routes.
The airline carried 1.01 million passengers last month, up from 978,000 in August 2010.
The passenger load factor, a measure of capacity utilisation, was unchanged at 81.9 per cent, the company said in a statement.
Revenue passenger kilometers (RPKs), a measure of demand, fell 2.8 per cent.
Demand fell most markedly on Asia/Japan/UK routes, with RPKs falling 10.7 per cent, and the airline said the Christchurch and Japanese earthquakes earlier in the year continue to "significantly affect passenger numbers on the Japan routes."